125125290279 has 12 divisors (see below), whose sum is σ = 197167124232. Its totient is φ = 75833509200.

The previous prime is 125125290271. The next prime is 125125290289. The reversal of 125125290279 is 972092521521.

125125290279 is a `hidden beast` number, since 1 + 2 + 51 + 2 + 529 + 0 + 2 + 79 = 666.

It is not a de Polignac number, because 125125290279 - 2³ = 125125290271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125125290271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 631945812 + ... + 631946009.

It is an arithmetic number, because the mean of its divisors is an integer number (16430593686).

Almost surely, 2^125125290279 is an apocalyptic number.

125125290279 is a deficient number, since it is larger than the sum of its proper divisors (72041833953).

125125290279 is a wasteful number, since it uses less digits than its factorization.

125125290279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263891838 (or 1263891835 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 125125290279 in words is "one hundred twenty-five billion, one hundred twenty-five million, two hundred ninety thousand, two hundred seventy-nine".