12790854191997 has 72 divisors (see below), whose sum is σ = 21552065620800. Its totient is φ = 7288688873088.

The previous prime is 12790854191993. The next prime is 12790854192001. The reversal of 12790854191997 is 79919145809721.

12790854191997 is a `hidden beast` number, since 1 + 2 + 79 + 0 + 8 + 541 + 9 + 1 + 9 + 9 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (12790854191993) and next prime (12790854192001).

It is not a de Polignac number, because 12790854191997 - 2² = 12790854191993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12790854191993) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 404412498 + ... + 404444124.

Almost surely, 2^{12790854191997} is an apocalyptic number.

It is an amenable number.

12790854191997 is a deficient number, since it is larger than the sum of its proper divisors (8761211428803).

12790854191997 is a wasteful number, since it uses less digits than its factorization.

12790854191997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34175 (or 34165 counting only the distinct ones).

The product of its (nonzero) digits is 102876480, while the sum is 72.

The spelling of 12790854191997 in words is "twelve trillion, seven hundred ninety billion, eight hundred fifty-four million, one hundred ninety-one thousand, nine hundred ninety-seven".