72022311607 has 4 divisors (see below), whose sum is σ = 72395484400. Its totient is φ = 71649138816.

The previous prime is 72022311589. The next prime is 72022311629. The reversal of 72022311607 is 70611322027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70611322027 = 19577 ⋅3606851.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72022311607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72022311667) 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, 186586107 + ... + 186586492.

It is an arithmetic number, because the mean of its divisors is an integer number (18098871100).

Almost surely, 2^72022311607 is an apocalyptic number.

72022311607 is a deficient number, since it is larger than the sum of its proper divisors (373172793).

72022311607 is a wasteful number, since it uses less digits than its factorization.

72022311607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373172792.

The product of its (nonzero) digits is 7056, while the sum is 31.

The spelling of 72022311607 in words is "seventy-two billion, twenty-two million, three hundred eleven thousand, six hundred seven".