125837495972 has 6 divisors (see below), whose sum is σ = 220215617958. Its totient is φ = 62918747984.

The previous prime is 125837495933. The next prime is 125837495977. The reversal of 125837495972 is 279594738521.

It can be written as a sum of positive squares in only one way, i.e., 113773988416 + 12063507556 = 337304^2 + 109834^2 .

It is a super-3 number, since 3×125837495972³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (125837495977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15729686993 + ... + 15729687000.

It is an arithmetic number, because the mean of its divisors is an integer number (36702602993).

Almost surely, 2^125837495972 is an apocalyptic number.

It is an amenable number.

125837495972 is a deficient number, since it is larger than the sum of its proper divisors (94378121986).

125837495972 is a wasteful number, since it uses less digits than its factorization.

125837495972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31459373997 (or 31459373995 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 62.

The spelling of 125837495972 in words is "one hundred twenty-five billion, eight hundred thirty-seven million, four hundred ninety-five thousand, nine hundred seventy-two".