625021311828 has 48 divisors (see below), whose sum is σ = 1493282359296. Its totient is φ = 203411802720.

The previous prime is 625021311821. The next prime is 625021311851. The reversal of 625021311828 is 828113120526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625021311821) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3473376 + ... + 3648887.

It is an arithmetic number, because the mean of its divisors is an integer number (31110049152).

Almost surely, 2^625021311828 is an apocalyptic number.

It is an amenable number.

625021311828 is an abundant number, since it is smaller than the sum of its proper divisors (868261047468).

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

625021311828 is a wasteful number, since it uses less digits than its factorization.

625021311828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122444 (or 7122442 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 625021311828 in words is "six hundred twenty-five billion, twenty-one million, three hundred eleven thousand, eight hundred twenty-eight".