124791216957 has 48 divisors (see below), whose sum is σ = 208564155072. Its totient is φ = 71060328960.

The previous prime is 124791216943. The next prime is 124791216961. The reversal of 124791216957 is 759612197421.

124791216957 is a `hidden beast` number, since 1 + 2 + 479 + 1 + 2 + 169 + 5 + 7 = 666.

It is not a de Polignac number, because 124791216957 - 2⁷ = 124791216829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124791216967) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 924763 + ... + 1051079.

It is an arithmetic number, because the mean of its divisors is an integer number (4345086564).

Almost surely, 2^124791216957 is an apocalyptic number.

124791216957 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

124791216957 is a deficient number, since it is larger than the sum of its proper divisors (83772938115).

124791216957 is a wasteful number, since it uses less digits than its factorization.

124791216957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126938 (or 126935 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The spelling of 124791216957 in words is "one hundred twenty-four billion, seven hundred ninety-one million, two hundred sixteen thousand, nine hundred fifty-seven".