70856567025728 has 112 divisors (see below), whose sum is σ = 156304071887040. Its totient is φ = 31595476224000.

The previous prime is 70856567025691. The next prime is 70856567025737. The reversal of 70856567025728 is 82752076565807.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277884278 + ... + 278139146.

It is an arithmetic number, because the mean of its divisors is an integer number (1395572070420).

Almost surely, 2^{70856567025728} 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 70856567025728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78152035943520).

70856567025728 is an abundant number, since it is smaller than the sum of its proper divisors (85447504861312).

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

70856567025728 is a wasteful number, since it uses less digits than its factorization.

70856567025728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262396 (or 262386 counting only the distinct ones).

The product of its (nonzero) digits is 395136000, while the sum is 68.

The spelling of 70856567025728 in words is "seventy trillion, eight hundred fifty-six billion, five hundred sixty-seven million, twenty-five thousand, seven hundred twenty-eight".