72300000865 has 4 divisors (see below), whose sum is σ = 86760001044. Its totient is φ = 57840000688.

The previous prime is 72300000847. The next prime is 72300000917. The reversal of 72300000865 is 56800000327.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7523133696 + 64776867169 = 86736^2 + 254513^2 .

It is a cyclic number.

It is not a de Polignac number, because 72300000865 - 2³⁵ = 37940262497 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7230000082 + ... + 7230000091.

It is an arithmetic number, because the mean of its divisors is an integer number (21690000261).

Almost surely, 2^72300000865 is an apocalyptic number.

It is an amenable number.

72300000865 is a deficient number, since it is larger than the sum of its proper divisors (14460000179).

72300000865 is a wasteful number, since it uses less digits than its factorization.

72300000865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14460000178.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 72300000865 in words is "seventy-two billion, three hundred million, eight hundred sixty-five", and thus it is an aban number.