72819489965 has 8 divisors (see below), whose sum is σ = 91982513760. Its totient is φ = 55189508112.

The previous prime is 72819489959. The next prime is 72819490031. The reversal of 72819489965 is 56998491827.

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 72819489965 - 2¹⁴ = 72819473581 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72819489895 and 72819489904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383260379 + ... + 383260568.

It is an arithmetic number, because the mean of its divisors is an integer number (11497814220).

Almost surely, 2^72819489965 is an apocalyptic number.

It is an amenable number.

72819489965 is a deficient number, since it is larger than the sum of its proper divisors (19163023795).

72819489965 is a wasteful number, since it uses less digits than its factorization.

72819489965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766520971.

The product of its digits is 78382080, while the sum is 68.

The spelling of 72819489965 in words is "seventy-two billion, eight hundred nineteen million, four hundred eighty-nine thousand, nine hundred sixty-five".