71612230012073 has 4 divisors (see below), whose sum is σ = 71612294377728. Its totient is φ = 71612165646420.

The previous prime is 71612230012033. The next prime is 71612230012093. The reversal of 71612230012073 is 37021003221617.

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 71612230012073 - 2³² = 71607935044777 is a prime.

It is a super-2 number, since 2×71612230012073² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71612230012033) 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, 30484061 + ... + 32749082.

It is an arithmetic number, because the mean of its divisors is an integer number (17903073594432).

Almost surely, 2^{71612230012073} is an apocalyptic number.

It is an amenable number.

71612230012073 is a deficient number, since it is larger than the sum of its proper divisors (64365655).

71612230012073 is a wasteful number, since it uses less digits than its factorization.

71612230012073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64365654.

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 71612230012073 in words is "seventy-one trillion, six hundred twelve billion, two hundred thirty million, twelve thousand, seventy-three".