625464223064424 has 24 divisors (see below), whose sum is σ = 1693965604133010. Its totient is φ = 208488074354784.

The previous prime is 625464223064423. The next prime is 625464223064477. The reversal of 625464223064424 is 424460322464526.

625464223064424 is a `hidden beast` number, since 6 + 2 + 54 + 64 + 22 + 30 + 64 + 424 = 666.

It can be written as a sum of positive squares in only one way, i.e., 587244008001924 + 38220215062500 = 24233118^2 + 6182250^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (625464223064423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4343501548987 + ... + 4343501549130.

Almost surely, 2^{625464223064424} is an apocalyptic number.

It is an amenable number.

625464223064424 is an abundant number, since it is smaller than the sum of its proper divisors (1068501381068586).

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

625464223064424 is a wasteful number, since it uses less digits than its factorization.

625464223064424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8687003098129 (or 8687003098122 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 54.

The spelling of 625464223064424 in words is "six hundred twenty-five trillion, four hundred sixty-four billion, two hundred twenty-three million, sixty-four thousand, four hundred twenty-four".