125073943881 has 16 divisors (see below), whose sum is σ = 174502940160. Its totient is φ = 79587480960.

The previous prime is 125073943873. The next prime is 125073943901. The reversal of 125073943881 is 188349370521.

It is not a de Polignac number, because 125073943881 - 2³ = 125073943873 is a prime.

It is a super-2 number, since 2×125073943881² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125073943801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9204726 + ... + 9218303.

It is an arithmetic number, because the mean of its divisors is an integer number (10906433760).

Almost surely, 2^125073943881 is an apocalyptic number.

It is an amenable number.

125073943881 is a deficient number, since it is larger than the sum of its proper divisors (49428996279).

125073943881 is a wasteful number, since it uses less digits than its factorization.

125073943881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18423136.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 125073943881 in words is "one hundred twenty-five billion, seventy-three million, nine hundred forty-three thousand, eight hundred eighty-one".