12970921758 has 16 divisors (see below), whose sum is σ = 25946177040. Its totient is φ = 4322918336.

The previous prime is 12970921753. The next prime is 12970921801. The reversal of 12970921758 is 85712907921.

It is a super-2 number, since 2×12970921758² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12970921758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12970921751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140985 + ... + 214052.

It is an arithmetic number, because the mean of its divisors is an integer number (1621636065).

Almost surely, 2^12970921758 is an apocalyptic number.

12970921758 is an abundant number, since it is smaller than the sum of its proper divisors (12975255282).

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

12970921758 is a wasteful number, since it uses less digits than its factorization.

12970921758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361131.

The product of its (nonzero) digits is 635040, while the sum is 51.

The spelling of 12970921758 in words is "twelve billion, nine hundred seventy million, nine hundred twenty-one thousand, seven hundred fifty-eight".