63956012346 has 32 divisors (see below), whose sum is σ = 142155256320. Its totient is φ = 21314053152.

The previous prime is 63956012339. The next prime is 63956012353. The reversal of 63956012346 is 64321065936.

63956012346 is a `hidden beast` number, since 6 + 3 + 9 + 5 + 601 + 2 + 34 + 6 = 666.

63956012346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63956012339) and next prime (63956012353).

It is a Curzon 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, 128046 + ... + 379878.

It is an arithmetic number, because the mean of its divisors is an integer number (4442351760).

Almost surely, 2^63956012346 is an apocalyptic number.

63956012346 is an abundant number, since it is smaller than the sum of its proper divisors (78199243974).

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

63956012346 is a wasteful number, since it uses less digits than its factorization.

63956012346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256547 (or 256541 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 63956012346 in words is "sixty-three billion, nine hundred fifty-six million, twelve thousand, three hundred forty-six".