44401031291 has 2 divisors, whose sum is σ = 44401031292. Its totient is φ = 44401031290.

The previous prime is 44401031267. The next prime is 44401031293. The reversal of 44401031291 is 19213010444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44401031291 - 2²² = 44396836987 is a prime.

It is a super-2 number, since 2×44401031291² (a number of 22 digits) contains 22 as substring.

Together with 44401031293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44401031293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22200515645 + 22200515646.

It is an arithmetic number, because the mean of its divisors is an integer number (22200515646).

Almost surely, 2^44401031291 is an apocalyptic number.

44401031291 is a deficient number, since it is larger than the sum of its proper divisors (1).

44401031291 is an equidigital number, since it uses as much as digits as its factorization.

44401031291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 44401031291 in words is "forty-four billion, four hundred one million, thirty-one thousand, two hundred ninety-one".