71592065993 has 4 divisors (see below), whose sum is σ = 81819504000. Its totient is φ = 61364627988.

The previous prime is 71592065969. The next prime is 71592066031. The reversal of 71592065993 is 39956029517.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71592065993 - 2⁶ = 71592065929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71592064993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5113718993 + ... + 5113719006.

It is an arithmetic number, because the mean of its divisors is an integer number (20454876000).

Almost surely, 2^71592065993 is an apocalyptic number.

It is an amenable number.

71592065993 is a deficient number, since it is larger than the sum of its proper divisors (10227438007).

71592065993 is a wasteful number, since it uses less digits than its factorization.

71592065993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10227438006.

The product of its (nonzero) digits is 4592700, while the sum is 56.

The spelling of 71592065993 in words is "seventy-one billion, five hundred ninety-two million, sixty-five thousand, nine hundred ninety-three".