63979730145 has 16 divisors (see below), whose sum is σ = 113741742720. Its totient is φ = 34122522672.

The previous prime is 63979730117. The next prime is 63979730167. The reversal of 63979730145 is 54103797936.

It is a happy number.

It is not a de Polignac number, because 63979730145 - 2⁸ = 63979729889 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 63979730091 and 63979730100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236961829 + ... + 236962098.

It is an arithmetic number, because the mean of its divisors is an integer number (7108858920).

Almost surely, 2^63979730145 is an apocalyptic number.

It is an amenable number.

63979730145 is a deficient number, since it is larger than the sum of its proper divisors (49762012575).

63979730145 is a wasteful number, since it uses less digits than its factorization.

63979730145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473923941 (or 473923935 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 63979730145 in words is "sixty-three billion, nine hundred seventy-nine million, seven hundred thirty thousand, one hundred forty-five".