72340557239 has 8 divisors (see below), whose sum is σ = 72633065472. Its totient is φ = 72048181720.

The previous prime is 72340557227. The next prime is 72340557251. The reversal of 72340557239 is 93275504327.

It is an interprime number because it is at equal distance from previous prime (72340557227) and next prime (72340557251).

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 72340557239 - 2³⁶ = 3621080503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72340557193 and 72340557202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72340527239) 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, 1142954 + ... + 1204584.

It is an arithmetic number, because the mean of its divisors is an integer number (9079133184).

Almost surely, 2^72340557239 is an apocalyptic number.

72340557239 is a deficient number, since it is larger than the sum of its proper divisors (292508233).

72340557239 is a wasteful number, since it uses less digits than its factorization.

72340557239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66357.

The product of its (nonzero) digits is 1587600, while the sum is 47.

The spelling of 72340557239 in words is "seventy-two billion, three hundred forty million, five hundred fifty-seven thousand, two hundred thirty-nine".