63949876316 has 24 divisors (see below), whose sum is σ = 121602485760. Its totient is φ = 29314882800.

The previous prime is 63949876303. The next prime is 63949876339. The reversal of 63949876316 is 61367894936.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

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, 13569350 + ... + 13574061.

It is an arithmetic number, because the mean of its divisors is an integer number (5066770240).

Almost surely, 2^63949876316 is an apocalyptic number.

It is an amenable number.

63949876316 is a deficient number, since it is larger than the sum of its proper divisors (57652609444).

63949876316 is a wasteful number, since it uses less digits than its factorization.

63949876316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27143465 (or 27143463 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 62.

The spelling of 63949876316 in words is "sixty-three billion, nine hundred forty-nine million, eight hundred seventy-six thousand, three hundred sixteen".