72022823051 has 4 divisors (see below), whose sum is σ = 72129208992. Its totient is φ = 71916437112.

The previous prime is 72022823003. The next prime is 72022823053. The reversal of 72022823051 is 15032822027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15032822027 = 149 ⋅100891423.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72022823051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72022822999 and 72022823017.

It is not an unprimeable number, because it can be changed into a prime (72022823053) 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, 53191955 + ... + 53193308.

It is an arithmetic number, because the mean of its divisors is an integer number (18032302248).

Almost surely, 2^72022823051 is an apocalyptic number.

72022823051 is a deficient number, since it is larger than the sum of its proper divisors (106385941).

72022823051 is a wasteful number, since it uses less digits than its factorization.

72022823051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106385940.

The product of its (nonzero) digits is 13440, while the sum is 32.

It can be divided in two parts, 7202 and 2823051, that multiplied together give a palindrome (20331613302).

The spelling of 72022823051 in words is "seventy-two billion, twenty-two million, eight hundred twenty-three thousand, fifty-one".