44572068081 has 24 divisors (see below), whose sum is σ = 64623994344. Its totient is φ = 29603082240.

The previous prime is 44572068043. The next prime is 44572068091. The reversal of 44572068081 is 18086027544.

44572068081 is a `hidden beast` number, since 445 + 72 + 0 + 68 + 0 + 81 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4475610000 + 40096458081 = 66900^2 + 200241^2 .

It is not a de Polignac number, because 44572068081 - 2²⁶ = 44504959217 is a prime.

It is a super-2 number, since 2×44572068081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44572068041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6104625 + ... + 6111921.

It is an arithmetic number, because the mean of its divisors is an integer number (2692666431).

Almost surely, 2^44572068081 is an apocalyptic number.

It is an amenable number.

44572068081 is a deficient number, since it is larger than the sum of its proper divisors (20051926263).

44572068081 is a wasteful number, since it uses less digits than its factorization.

44572068081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9761 (or 9758 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 44572068081 in words is "forty-four billion, five hundred seventy-two million, sixty-eight thousand, eighty-one".