125739864562 has 16 divisors (see below), whose sum is σ = 204005231640. Its totient is φ = 57780358272.

The previous prime is 125739864527. The next prime is 125739864589. The reversal of 125739864562 is 265468937521.

It can be written as a sum of positive squares in 4 ways, for example, as 110356175601 + 15383688961 = 332199^2 + 124031^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125739864497 and 125739864506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10553323 + ... + 10565230.

Almost surely, 2^125739864562 is an apocalyptic number.

125739864562 is a deficient number, since it is larger than the sum of its proper divisors (78265367078).

125739864562 is a wasteful number, since it uses less digits than its factorization.

125739864562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21118797.

The product of its digits is 21772800, while the sum is 58.

The spelling of 125739864562 in words is "one hundred twenty-five billion, seven hundred thirty-nine million, eight hundred sixty-four thousand, five hundred sixty-two".