64738073272167 has 12 divisors (see below), whose sum is σ = 93511850931720. Its totient is φ = 43158115214928.

The previous prime is 64738073272141. The next prime is 64738073272181. The reversal of 64738073272167 is 76127237083746.

64738073272167 is a `hidden beast` number, since 6 + 4 + 7 + 380 + 7 + 32 + 7 + 216 + 7 = 666.

It is not a de Polignac number, because 64738073272167 - 2²² = 64738069077863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64738073272667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49341492 + ... + 50636537.

It is an arithmetic number, because the mean of its divisors is an integer number (7792654244310).

Almost surely, 2^{64738073272167} is an apocalyptic number.

64738073272167 is a deficient number, since it is larger than the sum of its proper divisors (28773777659553).

64738073272167 is a wasteful number, since it uses less digits than its factorization.

64738073272167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100049982 (or 100049979 counting only the distinct ones).

The product of its (nonzero) digits is 99574272, while the sum is 63.

The spelling of 64738073272167 in words is "sixty-four trillion, seven hundred thirty-eight billion, seventy-three million, two hundred seventy-two thousand, one hundred sixty-seven".