63383478664 has 64 divisors (see below), whose sum is σ = 137094612480. Its totient is φ = 27201216000.

The previous prime is 63383478647. The next prime is 63383478679. The reversal of 63383478664 is 46687438336.

It is a junction number, because it is equal to n+sod(n) for n = 63383478599 and 63383478608.

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, 171499 + ... + 395194.

It is an arithmetic number, because the mean of its divisors is an integer number (2142103320).

Almost surely, 2^63383478664 is an apocalyptic number.

It is an amenable number.

63383478664 is an abundant number, since it is smaller than the sum of its proper divisors (73711133816).

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

63383478664 is a wasteful number, since it uses less digits than its factorization.

63383478664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566782 (or 566778 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 58.

The spelling of 63383478664 in words is "sixty-three billion, three hundred eighty-three million, four hundred seventy-eight thousand, six hundred sixty-four".