72734668075 has 18 divisors (see below), whose sum is σ = 95187730884. Its totient is φ = 55125215280.

The previous prime is 72734668073. The next prime is 72734668091. The reversal of 72734668075 is 57086643727.

It is not a de Polignac number, because 72734668075 - 2¹ = 72734668073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72734668073) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4020597 + ... + 4038646.

Almost surely, 2^72734668075 is an apocalyptic number.

72734668075 is a deficient number, since it is larger than the sum of its proper divisors (22453062809).

72734668075 is a wasteful number, since it uses less digits than its factorization.

72734668075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8059291 (or 8059267 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 55.

The spelling of 72734668075 in words is "seventy-two billion, seven hundred thirty-four million, six hundred sixty-eight thousand, seventy-five".