44872831391 has 2 divisors, whose sum is σ = 44872831392. Its totient is φ = 44872831390.

The previous prime is 44872831379. The next prime is 44872831501. The reversal of 44872831391 is 19313827844.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44872831391 - 2¹⁴ = 44872815007 is a prime.

It is a super-2 number, since 2×44872831391² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44872831351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22436415695 + 22436415696.

It is an arithmetic number, because the mean of its divisors is an integer number (22436415696).

Almost surely, 2^44872831391 is an apocalyptic number.

44872831391 is a deficient number, since it is larger than the sum of its proper divisors (1).

44872831391 is an equidigital number, since it uses as much as digits as its factorization.

44872831391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 50.

The spelling of 44872831391 in words is "forty-four billion, eight hundred seventy-two million, eight hundred thirty-one thousand, three hundred ninety-one".