5391971934957 has 12 divisors (see below), whose sum is σ = 8039642742144. Its totient is φ = 3478691570760.

The previous prime is 5391971934941. The next prime is 5391971934997. The reversal of 5391971934957 is 7594391791935.

5391971934957 is a `hidden beast` number, since 5 + 39 + 1 + 97 + 19 + 3 + 495 + 7 = 666.

It is not a de Polignac number, because 5391971934957 - 2⁴ = 5391971934941 is a prime.

It is a super-2 number, since 2×5391971934957² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5391971934997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9663031863 + ... + 9663032420.

It is an arithmetic number, because the mean of its divisors is an integer number (669970228512).

Almost surely, 2^{5391971934957} is an apocalyptic number.

It is an amenable number.

5391971934957 is a deficient number, since it is larger than the sum of its proper divisors (2647670807187).

5391971934957 is a wasteful number, since it uses less digits than its factorization.

5391971934957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19326064320 (or 19326064317 counting only the distinct ones).

The product of its digits is 289340100, while the sum is 72.

The spelling of 5391971934957 in words is "five trillion, three hundred ninety-one billion, nine hundred seventy-one million, nine hundred thirty-four thousand, nine hundred fifty-seven".