72671513633 has 8 divisors (see below), whose sum is σ = 76501269600. Its totient is φ = 68842251648.

The previous prime is 72671513617. The next prime is 72671513647. The reversal of 72671513633 is 33631517627.

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 72671513633 - 2⁴ = 72671513617 is a prime.

It is a super-2 number, since 2×72671513633² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72671513833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200273 + ... + 430641.

It is an arithmetic number, because the mean of its divisors is an integer number (9562658700).

Almost surely, 2^72671513633 is an apocalyptic number.

It is an amenable number.

72671513633 is a deficient number, since it is larger than the sum of its proper divisors (3829755967).

72671513633 is a wasteful number, since it uses less digits than its factorization.

72671513633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246991.

The product of its digits is 476280, while the sum is 44.

The spelling of 72671513633 in words is "seventy-two billion, six hundred seventy-one million, five hundred thirteen thousand, six hundred thirty-three".