44431331457 has 16 divisors (see below), whose sum is σ = 59383627328. Its totient is φ = 29550044160.

The previous prime is 44431331449. The next prime is 44431331479. The reversal of 44431331457 is 75413313444.

It is a happy number.

It is not a de Polignac number, because 44431331457 - 2³ = 44431331449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44431331407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2354853 + ... + 2373645.

It is an arithmetic number, because the mean of its divisors is an integer number (3711476708).

Almost surely, 2^44431331457 is an apocalyptic number.

It is an amenable number.

44431331457 is a deficient number, since it is larger than the sum of its proper divisors (14952295871).

44431331457 is a wasteful number, since it uses less digits than its factorization.

44431331457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20640.

The product of its digits is 241920, while the sum is 39.

The spelling of 44431331457 in words is "forty-four billion, four hundred thirty-one million, three hundred thirty-one thousand, four hundred fifty-seven".