12625350640 has 80 divisors (see below), whose sum is σ = 34019965440. Its totient is φ = 4267710720.

The previous prime is 12625350599. The next prime is 12625350677. The reversal of 12625350640 is 4605352621.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 12625350596 and 12625350605.

It is a congruent number.

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, 119010 + ... + 198529.

It is an arithmetic number, because the mean of its divisors is an integer number (425249568).

Almost surely, 2^12625350640 is an apocalyptic number.

12625350640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12625350640 is an abundant number, since it is smaller than the sum of its proper divisors (21394614800).

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

12625350640 is a wasteful number, since it uses less digits than its factorization.

12625350640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317630 (or 317624 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 12625350640 in words is "twelve billion, six hundred twenty-five million, three hundred fifty thousand, six hundred forty".