54131693157 has 24 divisors (see below), whose sum is σ = 78970049600. Its totient is φ = 35728060608.

The previous prime is 54131693149. The next prime is 54131693167. The reversal of 54131693157 is 75139613145.

54131693157 is a `hidden beast` number, since 541 + 3 + 1 + 6 + 93 + 15 + 7 = 666.

It is not a de Polignac number, because 54131693157 - 2³ = 54131693149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54131693107) 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, 6687969 + ... + 6696057.

Almost surely, 2^54131693157 is an apocalyptic number.

It is an amenable number.

54131693157 is a deficient number, since it is larger than the sum of its proper divisors (24838356443).

54131693157 is a wasteful number, since it uses less digits than its factorization.

54131693157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15417 (or 15414 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The spelling of 54131693157 in words is "fifty-four billion, one hundred thirty-one million, six hundred ninety-three thousand, one hundred fifty-seven".