70851583488 has 160 divisors (see below), whose sum is σ = 218319526656. Its totient is φ = 19999162368.

The previous prime is 70851583487. The next prime is 70851583499. The reversal of 70851583488 is 88438515807.

It is a super-2 number, since 2×70851583488² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70851583487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852720 + ... + 932112.

Almost surely, 2^70851583488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70851583488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109159763328).

70851583488 is an abundant number, since it is smaller than the sum of its proper divisors (147467943168).

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

70851583488 is an equidigital number, since it uses as much as digits as its factorization.

70851583488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79504 (or 79488 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 57.

The spelling of 70851583488 in words is "seventy billion, eight hundred fifty-one million, five hundred eighty-three thousand, four hundred eighty-eight".