63522688991 has 12 divisors (see below), whose sum is σ = 65071344960. Its totient is φ = 62010093600.

The previous prime is 63522688981. The next prime is 63522689029. The reversal of 63522688991 is 19988622536.

It is not a de Polignac number, because 63522688991 - 2²⁶ = 63455580127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63522688991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63522688981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3598595 + ... + 3616203.

It is an arithmetic number, because the mean of its divisors is an integer number (5422612080).

Almost surely, 2^63522688991 is an apocalyptic number.

63522688991 is a deficient number, since it is larger than the sum of its proper divisors (1548655969).

63522688991 is a wasteful number, since it uses less digits than its factorization.

63522688991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19646 (or 19603 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 59.

The spelling of 63522688991 in words is "sixty-three billion, five hundred twenty-two million, six hundred eighty-eight thousand, nine hundred ninety-one".