625161204428 has 12 divisors (see below), whose sum is σ = 1094061170832. Its totient is φ = 312572298480.

The previous prime is 625161204427. The next prime is 625161204431. The reversal of 625161204428 is 824402161526.

It is not an unprimeable number, because it can be changed into a prime (625161204427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1904975 + ... + 2208902.

It is an arithmetic number, because the mean of its divisors is an integer number (91171764236).

Almost surely, 2^625161204428 is an apocalyptic number.

It is an amenable number.

625161204428 is a deficient number, since it is larger than the sum of its proper divisors (468899966404).

625161204428 is a wasteful number, since it uses less digits than its factorization.

625161204428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151872 (or 4151870 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 625161204428 in words is "six hundred twenty-five billion, one hundred sixty-one million, two hundred four thousand, four hundred twenty-eight".