72904443219 has 12 divisors (see below), whose sum is σ = 106748972616. Its totient is φ = 47937167712.

The previous prime is 72904443179. The next prime is 72904443247. The reversal of 72904443219 is 91234440927.

It is not a de Polignac number, because 72904443219 - 2⁹ = 72904442707 is a prime.

It is a super-2 number, since 2×72904443219² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72904443299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55482177 + ... + 55483490.

It is an arithmetic number, because the mean of its divisors is an integer number (8895747718).

Almost surely, 2^72904443219 is an apocalyptic number.

72904443219 is a deficient number, since it is larger than the sum of its proper divisors (33844529397).

72904443219 is a wasteful number, since it uses less digits than its factorization.

72904443219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110965746 (or 110965743 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 72904443219 in words is "seventy-two billion, nine hundred four million, four hundred forty-three thousand, two hundred nineteen".