870983885520 has 480 divisors, whose sum is σ = 3361236652800. Its totient is φ = 197995069440.

The previous prime is 870983885509. The next prime is 870983885531. The reversal of 870983885520 is 25588389078.

870983885520 is a `hidden beast` number, since 8 + 70 + 9 + 8 + 3 + 8 + 8 + 552 + 0 = 666.

870983885520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (870983885509) and next prime (870983885531).

It is a super-2 number, since 2×870983885520² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1260468375 + ... + 1260469065.

It is an arithmetic number, because the mean of its divisors is an integer number (7002576360).

Almost surely, 2^870983885520 is an apocalyptic number.

870983885520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870983885520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1680618326400).

870983885520 is an abundant number, since it is smaller than the sum of its proper divisors (2490252767280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870983885520 is a wasteful number, since it uses less digits than its factorization.

870983885520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723 (or 1714 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 63.

The spelling of 870983885520 in words is "eight hundred seventy billion, nine hundred eighty-three million, eight hundred eighty-five thousand, five hundred twenty".