72911619722 has 8 divisors (see below), whose sum is σ = 109506399456. Its totient is φ = 36409486572.

The previous prime is 72911619713. The next prime is 72911619743. The reversal of 72911619722 is 22791611927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72911619722² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23159678 + ... + 23162825.

It is an arithmetic number, because the mean of its divisors is an integer number (13688299932).

Almost surely, 2^72911619722 is an apocalyptic number.

72911619722 is a deficient number, since it is larger than the sum of its proper divisors (36594779734).

72911619722 is a wasteful number, since it uses less digits than its factorization.

72911619722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46323292.

The product of its digits is 190512, while the sum is 47.

The spelling of 72911619722 in words is "seventy-two billion, nine hundred eleven million, six hundred nineteen thousand, seven hundred twenty-two".