63789630639 has 16 divisors (see below), whose sum is σ = 102319207680. Its totient is φ = 34532732160.

The previous prime is 63789630629. The next prime is 63789630683. The reversal of 63789630639 is 93603698736.

63789630639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63789630639 - 2⁷ = 63789630511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63789630629) 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, 79936482 + ... + 79937279.

It is an arithmetic number, because the mean of its divisors is an integer number (6394950480).

Almost surely, 2^63789630639 is an apocalyptic number.

63789630639 is a deficient number, since it is larger than the sum of its proper divisors (38529577041).

63789630639 is a wasteful number, since it uses less digits than its factorization.

63789630639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159873790.

The product of its (nonzero) digits is 26453952, while the sum is 60.

The spelling of 63789630639 in words is "sixty-three billion, seven hundred eighty-nine million, six hundred thirty thousand, six hundred thirty-nine".