44421402043391 has 2 divisors, whose sum is σ = 44421402043392. Its totient is φ = 44421402043390.

The previous prime is 44421402043273. The next prime is 44421402043429. The reversal of 44421402043391 is 19334020412444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44421402043391 - 2³⁰ = 44420328301567 is a prime.

It is a super-2 number, since 2×44421402043391² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44421405043391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22210701021695 + 22210701021696.

It is an arithmetic number, because the mean of its divisors is an integer number (22210701021696).

Almost surely, 2^{44421402043391} is an apocalyptic number.

44421402043391 is a deficient number, since it is larger than the sum of its proper divisors (1).

44421402043391 is an equidigital number, since it uses as much as digits as its factorization.

44421402043391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 44421402043391 in words is "forty-four trillion, four hundred twenty-one billion, four hundred two million, forty-three thousand, three hundred ninety-one".