63888885434 has 32 divisors (see below), whose sum is σ = 105298315200. Its totient is φ = 28831465600.

The previous prime is 63888885433. The next prime is 63888885439. The reversal of 63888885434 is 43458888836.

It is not an unprimeable number, because it can be changed into a prime (63888885433) 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, 9866822 + ... + 9873294.

It is an arithmetic number, because the mean of its divisors is an integer number (3290572350).

Almost surely, 2^63888885434 is an apocalyptic number.

63888885434 is a deficient number, since it is larger than the sum of its proper divisors (41409429766).

63888885434 is a wasteful number, since it uses less digits than its factorization.

63888885434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9646.

The product of its digits is 141557760, while the sum is 65.

The spelling of 63888885434 in words is "sixty-three billion, eight hundred eighty-eight million, eight hundred eighty-five thousand, four hundred thirty-four".