625381878124 has 24 divisors (see below), whose sum is σ = 1097224638048. Its totient is φ = 311889406080.

The previous prime is 625381878089. The next prime is 625381878133. The reversal of 625381878124 is 421878183526.

It is a super-2 number, since 2×625381878124² (a number of 24 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 9706464 + ... + 9770680.

It is an arithmetic number, because the mean of its divisors is an integer number (45717693252).

Almost surely, 2^625381878124 is an apocalyptic number.

It is an amenable number.

625381878124 is a deficient number, since it is larger than the sum of its proper divisors (471842759924).

625381878124 is a wasteful number, since it uses less digits than its factorization.

625381878124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70425 (or 70423 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 55.

The spelling of 625381878124 in words is "six hundred twenty-five billion, three hundred eighty-one million, eight hundred seventy-eight thousand, one hundred twenty-four".