70561078912 has 32 divisors (see below), whose sum is σ = 141514366500. Its totient is φ = 35043747840.

The previous prime is 70561078901. The next prime is 70561078921. The reversal of 70561078912 is 21987016507.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64813013056 + 5748065856 = 254584^2 + 75816^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×70561078912² (a number of 22 digits) contains 22 as substring.

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, 1830789 + ... + 1868932.

Almost surely, 2^70561078912 is an apocalyptic number.

It is an amenable number.

70561078912 is an abundant number, since it is smaller than the sum of its proper divisors (70953287588).

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

70561078912 is a wasteful number, since it uses less digits than its factorization.

70561078912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699884 (or 3699872 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 70561078912 in words is "seventy billion, five hundred sixty-one million, seventy-eight thousand, nine hundred twelve".