72142936337 has 4 divisors (see below), whose sum is σ = 72146373156. Its totient is φ = 72139499520.

The previous prime is 72142936303. The next prime is 72142936343. The reversal of 72142936337 is 73363924127.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22685179456 + 49457756881 = 150616^2 + 222391^2 .

It is a cyclic number.

It is not a de Polignac number, because 72142936337 - 2⁸ = 72142936081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72142936291 and 72142936300.

It is not an unprimeable number, because it can be changed into a prime (72142956337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1686728 + ... + 1728969.

It is an arithmetic number, because the mean of its divisors is an integer number (18036593289).

Almost surely, 2^72142936337 is an apocalyptic number.

It is an amenable number.

72142936337 is a deficient number, since it is larger than the sum of its proper divisors (3436819).

72142936337 is a wasteful number, since it uses less digits than its factorization.

72142936337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436818.

The product of its digits is 1143072, while the sum is 47.

The spelling of 72142936337 in words is "seventy-two billion, one hundred forty-two million, nine hundred thirty-six thousand, three hundred thirty-seven".