12997232496 has 120 divisors (see below), whose sum is σ = 38552514624. Its totient is φ = 4073472000.

The previous prime is 12997232459. The next prime is 12997232497. The reversal of 12997232496 is 69423279921.

12997232496 is a `hidden beast` number, since 129 + 9 + 7 + 23 + 2 + 496 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12997232497) 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, 3246496 + ... + 3250496.

Almost surely, 2^12997232496 is an apocalyptic number.

12997232496 is a gapful number since it is divisible by the number (16) 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 12997232496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19276257312).

12997232496 is an abundant number, since it is smaller than the sum of its proper divisors (25555282128).

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

12997232496 is a wasteful number, since it uses less digits than its factorization.

12997232496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5359 (or 5350 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 12997232496 in words is "twelve billion, nine hundred ninety-seven million, two hundred thirty-two thousand, four hundred ninety-six".