63720847679337 has 16 divisors (see below), whose sum is σ = 95948817394560. Its totient is φ = 41784162411600.

The previous prime is 63720847679311. The next prime is 63720847679399. The reversal of 63720847679337 is 73397674802736.

63720847679337 is a `hidden beast` number, since 6 + 37 + 2 + 0 + 8 + 476 + 7 + 93 + 37 = 666.

It is not a de Polignac number, because 63720847679337 - 2²⁷ = 63720713461609 is a prime.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (63720847679737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19344517989 + ... + 19344521282.

It is an arithmetic number, because the mean of its divisors is an integer number (5996801087160).

Almost surely, 2^{63720847679337} is an apocalyptic number.

It is an amenable number.

63720847679337 is a deficient number, since it is larger than the sum of its proper divisors (32227969715223).

63720847679337 is a wasteful number, since it uses less digits than its factorization.

63720847679337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38689039341 (or 38689039335 counting only the distinct ones).

The product of its (nonzero) digits is 1344252672, while the sum is 72.

The spelling of 63720847679337 in words is "sixty-three trillion, seven hundred twenty billion, eight hundred forty-seven million, six hundred seventy-nine thousand, three hundred thirty-seven".