12970687626 has 80 divisors (see below), whose sum is σ = 31344251400. Its totient is φ = 3985293312.

The previous prime is 12970687579. The next prime is 12970687633. The reversal of 12970687626 is 62678607921.

12970687626 is a `hidden beast` number, since 1 + 2 + 9 + 7 + 0 + 6 + 8 + 7 + 626 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9213120225 + 3757567401 = 95985^2 + 61299^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1615510 + ... + 1623518.

Almost surely, 2^12970687626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12970687626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15672125700).

12970687626 is an abundant number, since it is smaller than the sum of its proper divisors (18373563774).

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

12970687626 is a wasteful number, since it uses less digits than its factorization.

12970687626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805 (or 8796 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 12970687626 in words is "twelve billion, nine hundred seventy million, six hundred eighty-seven thousand, six hundred twenty-six".