72346495889 has 4 divisors (see below), whose sum is σ = 72646689060. Its totient is φ = 72046302720.

The previous prime is 72346495877. The next prime is 72346495919. The reversal of 72346495889 is 98859464327.

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 22122100225 + 50224395664 = 148735^2 + 224108^2 .

It is a cyclic number.

It is not a de Polignac number, because 72346495889 - 2⁸ = 72346495633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72346495849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150096224 + ... + 150096705.

It is an arithmetic number, because the mean of its divisors is an integer number (18161672265).

Almost surely, 2^72346495889 is an apocalyptic number.

It is an amenable number.

72346495889 is a deficient number, since it is larger than the sum of its proper divisors (300193171).

72346495889 is a wasteful number, since it uses less digits than its factorization.

72346495889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300193170.

The product of its digits is 104509440, while the sum is 65.

The spelling of 72346495889 in words is "seventy-two billion, three hundred forty-six million, four hundred ninety-five thousand, eight hundred eighty-nine".