72319347065 has 8 divisors (see below), whose sum is σ = 99180818880. Its totient is φ = 49590409392.

The previous prime is 72319347059. The next prime is 72319347119. The reversal of 72319347065 is 56074391327.

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 72319347065 - 2¹⁰ = 72319346041 is a prime.

It is a super-2 number, since 2×72319347065² (a number of 23 digits) contains 22 as substring.

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, 1033133495 + ... + 1033133564.

It is an arithmetic number, because the mean of its divisors is an integer number (12397602360).

Almost surely, 2^72319347065 is an apocalyptic number.

It is an amenable number.

72319347065 is a deficient number, since it is larger than the sum of its proper divisors (26861471815).

72319347065 is a wasteful number, since it uses less digits than its factorization.

72319347065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066267071.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 72319347065 in words is "seventy-two billion, three hundred nineteen million, three hundred forty-seven thousand, sixty-five".