125891975080 has 32 divisors (see below), whose sum is σ = 283578540840. Its totient is φ = 50299617280.

The previous prime is 125891975029. The next prime is 125891975089. The reversal of 125891975080 is 80579198521.

It can be written as a sum of positive squares in 4 ways, for example, as 116181449316 + 9710525764 = 340854^2 + 98542^2 .

It is not an unprimeable number, because it can be changed into a prime (125891975089) 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 7 ways as a sum of consecutive naturals, for example, 1750969 + ... + 1821448.

Almost surely, 2^125891975080 is an apocalyptic number.

125891975080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125891975080 is an abundant number, since it is smaller than the sum of its proper divisors (157686565760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125891975080 is a wasteful number, since it uses less digits than its factorization.

125891975080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573309 (or 3573305 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 55.

The spelling of 125891975080 in words is "one hundred twenty-five billion, eight hundred ninety-one million, nine hundred seventy-five thousand, eighty".