12974891280 has 320 divisors, whose sum is σ = 45042450432. Its totient is φ = 3068098560.

The previous prime is 12974891239. The next prime is 12974891297. The reversal of 12974891280 is 8219847921.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15764949 + ... + 15765771.

Almost surely, 2^12974891280 is an apocalyptic number.

12974891280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12974891280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22521225216).

12974891280 is an abundant number, since it is smaller than the sum of its proper divisors (32067559152).

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

12974891280 is a wasteful number, since it uses less digits than its factorization.

12974891280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 12974891280 in words is "twelve billion, nine hundred seventy-four million, eight hundred ninety-one thousand, two hundred eighty".