125344875440 has 40 divisors (see below), whose sum is σ = 291897753360. Its totient is φ = 50056932096.

The previous prime is 125344875437. The next prime is 125344875457. The reversal of 125344875440 is 44578443521.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×125344875440² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216079 + ... + 1315118.

It is an arithmetic number, because the mean of its divisors is an integer number (7297443834).

Almost surely, 2^125344875440 is an apocalyptic number.

125344875440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125344875440 is an abundant number, since it is smaller than the sum of its proper divisors (166552877920).

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

125344875440 is a wasteful number, since it uses less digits than its factorization.

125344875440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531829 (or 2531823 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 47.

The spelling of 125344875440 in words is "one hundred twenty-five billion, three hundred forty-four million, eight hundred seventy-five thousand, four hundred forty".