72279939122 has 8 divisors (see below), whose sum is σ = 108600912000. Its totient is φ = 36079635124.

The previous prime is 72279939107. The next prime is 72279939139. The reversal of 72279939122 is 22193997227.

It is a happy number.

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

It is a super-2 number, since 2×72279939122² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30165722 + ... + 30168117.

It is an arithmetic number, because the mean of its divisors is an integer number (13575114000).

Almost surely, 2^72279939122 is an apocalyptic number.

72279939122 is a deficient number, since it is larger than the sum of its proper divisors (36320972878).

72279939122 is a wasteful number, since it uses less digits than its factorization.

72279939122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60334440.

The product of its digits is 1714608, while the sum is 53.

The spelling of 72279939122 in words is "seventy-two billion, two hundred seventy-nine million, nine hundred thirty-nine thousand, one hundred twenty-two".