63907340620 has 12 divisors (see below), whose sum is σ = 134205415344. Its totient is φ = 25562936240.

The previous prime is 63907340603. The next prime is 63907340659. The reversal of 63907340620 is 2604370936.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1597683496 + ... + 1597683535.

It is an arithmetic number, because the mean of its divisors is an integer number (11183784612).

Almost surely, 2^63907340620 is an apocalyptic number.

It is an amenable number.

63907340620 is an abundant number, since it is smaller than the sum of its proper divisors (70298074724).

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

63907340620 is a wasteful number, since it uses less digits than its factorization.

63907340620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195367040 (or 3195367038 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 40.

The spelling of 63907340620 in words is "sixty-three billion, nine hundred seven million, three hundred forty thousand, six hundred twenty".