353640947688 has 96 divisors (see below), whose sum is σ = 1121300631360. Its totient is φ = 98575868160.

The previous prime is 353640947669. The next prime is 353640947711. The reversal of 353640947688 is 886749046353.

353640947688 is a `hidden beast` number, since 3 + 536 + 4 + 0 + 94 + 7 + 6 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8536270 + ... + 8577597.

It is an arithmetic number, because the mean of its divisors is an integer number (11680214910).

Almost surely, 2^353640947688 is an apocalyptic number.

It is an amenable number.

353640947688 is an abundant number, since it is smaller than the sum of its proper divisors (767659683672).

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

353640947688 is a wasteful number, since it uses less digits than its factorization.

353640947688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17113927 (or 17113920 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 63.

The spelling of 353640947688 in words is "three hundred fifty-three billion, six hundred forty million, nine hundred forty-seven thousand, six hundred eighty-eight".