72344456139 has 8 divisors (see below), whose sum is σ = 96632453520. Its totient is φ = 48143048096.

The previous prime is 72344456137. The next prime is 72344456143. The reversal of 72344456139 is 93165444327.

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 72344456139 - 2¹ = 72344456137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72344456137) 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, 21645384 + ... + 21648725.

It is an arithmetic number, because the mean of its divisors is an integer number (12079056690).

Almost surely, 2^72344456139 is an apocalyptic number.

72344456139 is a deficient number, since it is larger than the sum of its proper divisors (24287997381).

72344456139 is a wasteful number, since it uses less digits than its factorization.

72344456139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43294669.

The product of its digits is 2177280, while the sum is 48.

The spelling of 72344456139 in words is "seventy-two billion, three hundred forty-four million, four hundred fifty-six thousand, one hundred thirty-nine".