63379876986 has 24 divisors (see below), whose sum is σ = 145400894964. Its totient is φ = 19883882880.

The previous prime is 63379876979. The next prime is 63379876999. The reversal of 63379876986 is 68967897336.

It can be written as a sum of positive squares in 2 ways, for example, as 59813995761 + 3565881225 = 244569^2 + 59715^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103561585 + ... + 103562196.

Almost surely, 2^63379876986 is an apocalyptic number.

63379876986 is an abundant number, since it is smaller than the sum of its proper divisors (82021017978).

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

63379876986 is a wasteful number, since it uses less digits than its factorization.

63379876986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207123806 (or 207123803 counting only the distinct ones).

The product of its digits is 493807104, while the sum is 72.

The spelling of 63379876986 in words is "sixty-three billion, three hundred seventy-nine million, eight hundred seventy-six thousand, nine hundred eighty-six".