44040061571 has 6 divisors (see below), whose sum is σ = 48407671116. Its totient is φ = 40036419500.

The previous prime is 44040061561. The next prime is 44040061573. The reversal of 44040061571 is 17516004044.

It is a de Polignac number, because none of the positive numbers 2^k-44040061571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44040061573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181983605 + ... + 181983846.

It is an arithmetic number, because the mean of its divisors is an integer number (8067945186).

Almost surely, 2^44040061571 is an apocalyptic number.

44040061571 is a deficient number, since it is larger than the sum of its proper divisors (4367609545).

44040061571 is a wasteful number, since it uses less digits than its factorization.

44040061571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363967473 (or 363967462 counting only the distinct ones).

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

The spelling of 44040061571 in words is "forty-four billion, forty million, sixty-one thousand, five hundred seventy-one".