72982554445 has 4 divisors (see below), whose sum is σ = 87579065340. Its totient is φ = 58386043552.

The previous prime is 72982554413. The next prime is 72982554451. The reversal of 72982554445 is 54445528927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54445528927 = 36551 ⋅1489577.

It can be written as a sum of positive squares in 2 ways, for example, as 49769594281 + 23212960164 = 223091^2 + 152358^2 .

It is a cyclic number.

It is not a de Polignac number, because 72982554445 - 2⁵ = 72982554413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7298255440 + ... + 7298255449.

It is an arithmetic number, because the mean of its divisors is an integer number (21894766335).

Almost surely, 2^72982554445 is an apocalyptic number.

It is an amenable number.

72982554445 is a deficient number, since it is larger than the sum of its proper divisors (14596510895).

72982554445 is a wasteful number, since it uses less digits than its factorization.

72982554445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14596510894.

The product of its digits is 16128000, while the sum is 55.

The spelling of 72982554445 in words is "seventy-two billion, nine hundred eighty-two million, five hundred fifty-four thousand, four hundred forty-five".