63690935472 has 80 divisors (see below), whose sum is σ = 193570512480. Its totient is φ = 19981467648.

The previous prime is 63690935453. The next prime is 63690935501. The reversal of 63690935472 is 27453909636.

63690935472 is a `hidden beast` number, since 6 + 3 + 6 + 9 + 0 + 93 + 547 + 2 = 666.

It is a super-2 number, since 2×63690935472² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 4328913 + ... + 4343600.

It is an arithmetic number, because the mean of its divisors is an integer number (2419631406).

Almost surely, 2^63690935472 is an apocalyptic number.

It is an amenable number.

63690935472 is an abundant number, since it is smaller than the sum of its proper divisors (129879577008).

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

63690935472 is a wasteful number, since it uses less digits than its factorization.

63690935472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8672547 (or 8672535 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 54.

The spelling of 63690935472 in words is "sixty-three billion, six hundred ninety million, nine hundred thirty-five thousand, four hundred seventy-two".