63986077672 has 32 divisors (see below), whose sum is σ = 131119981920. Its totient is φ = 29031387840.

The previous prime is 63986077637. The next prime is 63986077697. The reversal of 63986077672 is 27677068936.

It is a self number, because there is not a number n which added to its sum of digits gives 63986077672.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616503 + ... + 712774.

It is an arithmetic number, because the mean of its divisors is an integer number (4097499435).

Almost surely, 2^63986077672 is an apocalyptic number.

It is an amenable number.

63986077672 is an abundant number, since it is smaller than the sum of its proper divisors (67133904248).

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

63986077672 is a wasteful number, since it uses less digits than its factorization.

63986077672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329841 (or 1329837 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 61.

The spelling of 63986077672 in words is "sixty-three billion, nine hundred eighty-six million, seventy-seven thousand, six hundred seventy-two".