124172058857 has 32 divisors (see below), whose sum is σ = 163874810880. Its totient is φ = 91248333120.

The previous prime is 124172058839. The next prime is 124172058863. The reversal of 124172058857 is 758850271421.

It is a happy number.

It is not a de Polignac number, because 124172058857 - 2³⁰ = 123098317033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124172058877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550583 + ... + 742620.

It is an arithmetic number, because the mean of its divisors is an integer number (5121087840).

Almost surely, 2^124172058857 is an apocalyptic number.

It is an amenable number.

124172058857 is a deficient number, since it is larger than the sum of its proper divisors (39702752023).

124172058857 is a wasteful number, since it uses less digits than its factorization.

124172058857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293293.

The product of its (nonzero) digits is 1254400, while the sum is 50.

The spelling of 124172058857 in words is "one hundred twenty-four billion, one hundred seventy-two million, fifty-eight thousand, eight hundred fifty-seven".