72645650337 has 8 divisors (see below), whose sum is σ = 104311703104. Its totient is φ = 44705015568.

The previous prime is 72645650309. The next prime is 72645650359. The reversal of 72645650337 is 73305654627.

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

It is not a de Polignac number, because 72645650337 - 2²⁰ = 72644601761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72645650137) 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, 931354453 + ... + 931354530.

It is an arithmetic number, because the mean of its divisors is an integer number (13038962888).

Almost surely, 2^72645650337 is an apocalyptic number.

It is an amenable number.

72645650337 is a deficient number, since it is larger than the sum of its proper divisors (31666052767).

72645650337 is a wasteful number, since it uses less digits than its factorization.

72645650337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862708999.

The product of its (nonzero) digits is 3175200, while the sum is 48.

The spelling of 72645650337 in words is "seventy-two billion, six hundred forty-five million, six hundred fifty thousand, three hundred thirty-seven".