125687275785 has 48 divisors (see below), whose sum is σ = 219278352384. Its totient is φ = 66596743296.

The previous prime is 125687275783. The next prime is 125687275787. The reversal of 125687275785 is 587572786521.

125687275785 is a `hidden beast` number, since 1 + 2 + 56 + 8 + 7 + 2 + 7 + 578 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (125687275783) and next prime (125687275787).

It is not a de Polignac number, because 125687275785 - 2¹ = 125687275783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125687275783) 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, 12193944 + ... + 12204246.

It is an arithmetic number, because the mean of its divisors is an integer number (4568299008).

Almost surely, 2^125687275785 is an apocalyptic number.

125687275785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125687275785 is a deficient number, since it is larger than the sum of its proper divisors (93591076599).

125687275785 is a wasteful number, since it uses less digits than its factorization.

125687275785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12054 (or 12051 counting only the distinct ones).

The product of its digits is 65856000, while the sum is 63.

The spelling of 125687275785 in words is "one hundred twenty-five billion, six hundred eighty-seven million, two hundred seventy-five thousand, seven hundred eighty-five".