125739658512 has 90 divisors (see below), whose sum is σ = 381047660682. Its totient is φ = 38689118208.

The previous prime is 125739658487. The next prime is 125739658523. The reversal of 125739658512 is 215856937521.

125739658512 is a `hidden beast` number, since 1 + 2 + 5 + 73 + 9 + 6 + 58 + 512 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 6731217936 + 119008440576 = 82044^2 + 344976^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2559073 + ... + 2607744.

Almost surely, 2^125739658512 is an apocalyptic number.

125739658512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125739658512 is an abundant number, since it is smaller than the sum of its proper divisors (255308002170).

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

125739658512 is a wasteful number, since it uses less digits than its factorization.

125739658512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166857 (or 5166835 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 54.

The spelling of 125739658512 in words is "one hundred twenty-five billion, seven hundred thirty-nine million, six hundred fifty-eight thousand, five hundred twelve".