44042009823 has 128 divisors (see below), whose sum is σ = 80518400000. Its totient is φ = 23716457856.

The previous prime is 44042009813. The next prime is 44042009831. The reversal of 44042009823 is 32890024044.

44042009823 is a `hidden beast` number, since 440 + 4 + 200 + 9 + 8 + 2 + 3 = 666.

It is not a de Polignac number, because 44042009823 - 2²⁵ = 44008455391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44042009813) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 40294065 + ... + 40295157.

It is an arithmetic number, because the mean of its divisors is an integer number (629050000).

Almost surely, 2^44042009823 is an apocalyptic number.

44042009823 is a deficient number, since it is larger than the sum of its proper divisors (36476390177).

44042009823 is a wasteful number, since it uses less digits than its factorization.

44042009823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 44042009823 in words is "forty-four billion, forty-two million, nine thousand, eight hundred twenty-three".