72406122239 has 8 divisors (see below), whose sum is σ = 78997122768. Its totient is φ = 65816559360.

The previous prime is 72406122223. The next prime is 72406122281. The reversal of 72406122239 is 93222160427.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 72406122239 - 2⁴ = 72406122223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72406122289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252722 + ... + 456815.

It is an arithmetic number, because the mean of its divisors is an integer number (9874640346).

Almost surely, 2^72406122239 is an apocalyptic number.

72406122239 is a deficient number, since it is larger than the sum of its proper divisors (6591000529).

72406122239 is a wasteful number, since it uses less digits than its factorization.

72406122239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718825.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 72406122239 in words is "seventy-two billion, four hundred six million, one hundred twenty-two thousand, two hundred thirty-nine".