125857392394 has 16 divisors (see below), whose sum is σ = 191086829928. Its totient is φ = 62166416832.

The previous prime is 125857392389. The next prime is 125857392403. The reversal of 125857392394 is 493293758521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 125838339169 + 19053225 = 354737^2 + 4365^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104117 + ... + 1212760.

Almost surely, 2^125857392394 is an apocalyptic number.

125857392394 is a deficient number, since it is larger than the sum of its proper divisors (65229437534).

125857392394 is a wasteful number, since it uses less digits than its factorization.

125857392394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317209.

The product of its digits is 16329600, while the sum is 58.

The spelling of 125857392394 in words is "one hundred twenty-five billion, eight hundred fifty-seven million, three hundred ninety-two thousand, three hundred ninety-four".