70020648864 has 72 divisors (see below), whose sum is σ = 203977869732. Its totient is φ = 22770938880.

The previous prime is 70020648847. The next prime is 70020648877. The reversal of 70020648864 is 46884602007.

It can be written as a sum of positive squares in 2 ways, for example, as 55065315600 + 14955333264 = 234660^2 + 122292^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2953159 + ... + 2976774.

Almost surely, 2^70020648864 is an apocalyptic number.

It is an amenable number.

70020648864 is an abundant number, since it is smaller than the sum of its proper divisors (133957220868).

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

70020648864 is a wasteful number, since it uses less digits than its factorization.

70020648864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5929990 (or 5929979 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 70020648864 in words is "seventy billion, twenty million, six hundred forty-eight thousand, eight hundred sixty-four".