63613766413 has 16 divisors (see below), whose sum is σ = 66827779200. Its totient is φ = 60437931840.

The previous prime is 63613766399. The next prime is 63613766423. The reversal of 63613766413 is 31466731636.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63613766413 is a prime.

It is a super-2 number, since 2×63613766413² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63613766423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3567123 + ... + 3584911.

It is an arithmetic number, because the mean of its divisors is an integer number (4176736200).

Almost surely, 2^63613766413 is an apocalyptic number.

It is an amenable number.

63613766413 is a deficient number, since it is larger than the sum of its proper divisors (3214012787).

63613766413 is a wasteful number, since it uses less digits than its factorization.

63613766413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18852.

The product of its digits is 979776, while the sum is 46.

The spelling of 63613766413 in words is "sixty-three billion, six hundred thirteen million, seven hundred sixty-six thousand, four hundred thirteen".