72783976108 has 6 divisors (see below), whose sum is σ = 127371958196. Its totient is φ = 36391988052.

The previous prime is 72783976081. The next prime is 72783976141. The reversal of 72783976108 is 80167938727.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9097997010 + ... + 9097997017.

Almost surely, 2^72783976108 is an apocalyptic number.

It is an amenable number.

72783976108 is a deficient number, since it is larger than the sum of its proper divisors (54587982088).

72783976108 is a wasteful number, since it uses less digits than its factorization.

72783976108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18195994031 (or 18195994029 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 58.

The spelling of 72783976108 in words is "seventy-two billion, seven hundred eighty-three million, nine hundred seventy-six thousand, one hundred eight".