63816139364 has 48 divisors (see below), whose sum is σ = 117261236736. Its totient is φ = 30361056000.

The previous prime is 63816139301. The next prime is 63816139369. The reversal of 63816139364 is 46393161836.

It is not an unprimeable number, because it can be changed into a prime (63816139369) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1081037 + ... + 1138539.

It is an arithmetic number, because the mean of its divisors is an integer number (2442942432).

Almost surely, 2^63816139364 is an apocalyptic number.

It is an amenable number.

63816139364 is a deficient number, since it is larger than the sum of its proper divisors (53445097372).

63816139364 is a wasteful number, since it uses less digits than its factorization.

63816139364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57716 (or 57714 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 50.

The spelling of 63816139364 in words is "sixty-three billion, eight hundred sixteen million, one hundred thirty-nine thousand, three hundred sixty-four".