44009217831 has 4 divisors (see below), whose sum is σ = 58678957112. Its totient is φ = 29339478552.

The previous prime is 44009217821. The next prime is 44009217881. The reversal of 44009217831 is 13871290044.

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

It is not a de Polignac number, because 44009217831 - 2¹³ = 44009209639 is a prime.

It is a super-2 number, since 2×44009217831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44009217831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44009217821) 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, 7334869636 + ... + 7334869641.

It is an arithmetic number, because the mean of its divisors is an integer number (14669739278).

Almost surely, 2^44009217831 is an apocalyptic number.

44009217831 is a deficient number, since it is larger than the sum of its proper divisors (14669739281).

44009217831 is a wasteful number, since it uses less digits than its factorization.

44009217831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14669739280.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 44009217831 in words is "forty-four billion, nine million, two hundred seventeen thousand, eight hundred thirty-one".