72475382085 has 16 divisors (see below), whose sum is σ = 116401532544. Its totient is φ = 38506563392.

The previous prime is 72475382071. The next prime is 72475382093. The reversal of 72475382085 is 58028357427.

It is a cyclic number.

It is not a de Polignac number, because 72475382085 - 2²⁶ = 72408273221 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9181782 + ... + 9189671.

It is an arithmetic number, because the mean of its divisors is an integer number (7275095784).

Almost surely, 2^72475382085 is an apocalyptic number.

It is an amenable number.

72475382085 is a deficient number, since it is larger than the sum of its proper divisors (43926150459).

72475382085 is a wasteful number, since it uses less digits than its factorization.

72475382085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18371724.

The product of its (nonzero) digits is 3763200, while the sum is 51.

The spelling of 72475382085 in words is "seventy-two billion, four hundred seventy-five million, three hundred eighty-two thousand, eighty-five".