125912844964 has 9 divisors (see below), whose sum is σ = 220348720641. Its totient is φ = 62956067640.

The previous prime is 125912844917. The next prime is 125912845001. The reversal of 125912844964 is 469448219521.

The square root of 125912844964 is 354842.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10991844964 + 114921000000 = 104842^2 + 339000^2 .

It is a super-2 number, since 2×125912844964² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 620974 + ... + 798394.

Almost surely, 2^125912844964 is an apocalyptic number.

125912844964 is the 354842-nd square number.

It is an amenable number.

125912844964 is a deficient number, since it is larger than the sum of its proper divisors (94435875677).

125912844964 is an frugal number, since it uses more digits than its factorization.

125912844964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354846 (or 177423 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 55.

The spelling of 125912844964 in words is "one hundred twenty-five billion, nine hundred twelve million, eight hundred forty-four thousand, nine hundred sixty-four".