63487665774 has 24 divisors (see below), whose sum is σ = 148137887352. Its totient is φ = 19534666320.

The previous prime is 63487665719. The next prime is 63487665817. The reversal of 63487665774 is 47756678436.

63487665774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63487665774² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135657172 + ... + 135657639.

It is an arithmetic number, because the mean of its divisors is an integer number (6172411973).

Almost surely, 2^63487665774 is an apocalyptic number.

63487665774 is an abundant number, since it is smaller than the sum of its proper divisors (84650221578).

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

63487665774 is a wasteful number, since it uses less digits than its factorization.

63487665774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271314832 (or 271314829 counting only the distinct ones).

The product of its digits is 142248960, while the sum is 63.

The spelling of 63487665774 in words is "sixty-three billion, four hundred eighty-seven million, six hundred sixty-five thousand, seven hundred seventy-four".