12970830978 has 48 divisors (see below), whose sum is σ = 32177785536. Its totient is φ = 3699082080.

The previous prime is 12970830973. The next prime is 12970830989. The reversal of 12970830978 is 87903807921.

It is a super-3 number, since 3×12970830978³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12970830973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26976 + ... + 163307.

It is an arithmetic number, because the mean of its divisors is an integer number (670370532).

Almost surely, 2^12970830978 is an apocalyptic number.

12970830978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12970830978 is an abundant number, since it is smaller than the sum of its proper divisors (19206954558).

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

12970830978 is a wasteful number, since it uses less digits than its factorization.

12970830978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190839 (or 190836 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 12970830978 in words is "twelve billion, nine hundred seventy million, eight hundred thirty thousand, nine hundred seventy-eight".