72619000091 has 16 divisors (see below), whose sum is σ = 80631186048. Its totient is φ = 64847481600.

The previous prime is 72619000081. The next prime is 72619000109. The reversal of 72619000091 is 19000091627.

It is not a de Polignac number, because 72619000091 - 2²⁶ = 72551891227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72619000081) 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, 120596 + ... + 399726.

It is an arithmetic number, because the mean of its divisors is an integer number (5039449128).

Almost surely, 2^72619000091 is an apocalyptic number.

72619000091 is a deficient number, since it is larger than the sum of its proper divisors (8012185957).

72619000091 is a wasteful number, since it uses less digits than its factorization.

72619000091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279562.

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 72619000091 in words is "seventy-two billion, six hundred nineteen million, ninety-one", and thus it is an aban number.