877838855040 has 384 divisors, whose sum is σ = 3479625976320. Its totient is φ = 199762882560.

The previous prime is 877838855027. The next prime is 877838855077. The reversal of 877838855040 is 40558838778.

877838855040 is a `hidden beast` number, since 8 + 7 + 7 + 8 + 38 + 8 + 550 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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 47 ways as a sum of consecutive naturals, for example, 9104685 + ... + 9200595.

It is an arithmetic number, because the mean of its divisors is an integer number (9061525980).

Almost surely, 2^877838855040 is an apocalyptic number.

877838855040 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 877838855040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1739812988160).

877838855040 is an abundant number, since it is smaller than the sum of its proper divisors (2601787121280).

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

877838855040 is a wasteful number, since it uses less digits than its factorization.

877838855040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96170 (or 96155 counting only the distinct ones).

The product of its (nonzero) digits is 60211200, while the sum is 63.

The spelling of 877838855040 in words is "eight hundred seventy-seven billion, eight hundred thirty-eight million, eight hundred fifty-five thousand, forty".