44113172399 has 4 divisors (see below), whose sum is σ = 44114364840. Its totient is φ = 44111979960.

The previous prime is 44113172393. The next prime is 44113172407. The reversal of 44113172399 is 99327131144.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44113172399 - 2²⁰ = 44112123823 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 (44113172393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538892 + ... + 615329.

It is an arithmetic number, because the mean of its divisors is an integer number (11028591210).

Almost surely, 2^44113172399 is an apocalyptic number.

44113172399 is a deficient number, since it is larger than the sum of its proper divisors (1192441).

44113172399 is a wasteful number, since it uses less digits than its factorization.

44113172399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192440.

The product of its digits is 163296, while the sum is 44.

The spelling of 44113172399 in words is "forty-four billion, one hundred thirteen million, one hundred seventy-two thousand, three hundred ninety-nine".