72022269512 has 36 divisors (see below), whose sum is σ = 135951592905. Its totient is φ = 35770131936.

The previous prime is 72022269509. The next prime is 72022269541. The reversal of 72022269512 is 21596222027.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 69872463556 + 2149805956 = 264334^2 + 46366^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=189766.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 181416098 + ... + 181416494.

Almost surely, 2^72022269512 is an apocalyptic number.

It is an amenable number.

72022269512 is a deficient number, since it is larger than the sum of its proper divisors (63929323393).

72022269512 is an frugal number, since it uses more digits than its factorization.

72022269512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 72022269512 in words is "seventy-two billion, twenty-two million, two hundred sixty-nine thousand, five hundred twelve".