125587167831 has 6 divisors (see below), whose sum is σ = 181403686880. Its totient is φ = 83724778548.

The previous prime is 125587167821. The next prime is 125587167833. The reversal of 125587167831 is 138761785521.

125587167831 is a `hidden beast` number, since 1 + 2 + 558 + 7 + 1 + 6 + 7 + 83 + 1 = 666.

It is not a de Polignac number, because 125587167831 - 2⁹ = 125587167319 is a prime.

It is a super-3 number, since 3×125587167831³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125587167833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6977064871 + ... + 6977064888.

Almost surely, 2^125587167831 is an apocalyptic number.

125587167831 is a deficient number, since it is larger than the sum of its proper divisors (55816519049).

125587167831 is a wasteful number, since it uses less digits than its factorization.

125587167831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13954129765 (or 13954129762 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 54.

The spelling of 125587167831 in words is "one hundred twenty-five billion, five hundred eighty-seven million, one hundred sixty-seven thousand, eight hundred thirty-one".