640503425130 has 32 divisors (see below), whose sum is σ = 1537247678400. Its totient is φ = 170796529152.

The previous prime is 640503425129. The next prime is 640503425167. The reversal of 640503425130 is 31524305046.

It is a junction number, because it is equal to n+sod(n) for n = 640503425091 and 640503425100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1013361 + ... + 1519179.

It is an arithmetic number, because the mean of its divisors is an integer number (48038989950).

Almost surely, 2^640503425130 is an apocalyptic number.

640503425130 is an abundant number, since it is smaller than the sum of its proper divisors (896744253270).

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

640503425130 is a wasteful number, since it uses less digits than its factorization.

640503425130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548038.

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 640503425130 in words is "six hundred forty billion, five hundred three million, four hundred twenty-five thousand, one hundred thirty".