125074781694 has 32 divisors (see below), whose sum is σ = 279157716000. Its totient is φ = 41509530432.

The previous prime is 125074781681. The next prime is 125074781719. The reversal of 125074781694 is 496187470521.

125074781694 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 7 + 478 + 169 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 125074781694.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5044839 + ... + 5069570.

It is an arithmetic number, because the mean of its divisors is an integer number (8723678625).

Almost surely, 2^125074781694 is an apocalyptic number.

125074781694 is an abundant number, since it is smaller than the sum of its proper divisors (154082934306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125074781694 is a wasteful number, since it uses less digits than its factorization.

125074781694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10114649 (or 10114643 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 125074781694 in words is "one hundred twenty-five billion, seventy-four million, seven hundred eighty-one thousand, six hundred ninety-four".