70561507072 has 36 divisors (see below), whose sum is σ = 160968442096. Its totient is φ = 30240645120.

The previous prime is 70561507063. The next prime is 70561507087. The reversal of 70561507072 is 27070516507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19686129 + ... + 19689712.

Almost surely, 2^70561507072 is an apocalyptic number.

It is an amenable number.

70561507072 is an abundant number, since it is smaller than the sum of its proper divisors (90406935024).

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

70561507072 is an equidigital number, since it uses as much as digits as its factorization.

70561507072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39375864 (or 39375850 counting only the distinct ones).

The product of its (nonzero) digits is 102900, while the sum is 40.

The spelling of 70561507072 in words is "seventy billion, five hundred sixty-one million, five hundred seven thousand, seventy-two".