444631136431 has 2 divisors, whose sum is σ = 444631136432. Its totient is φ = 444631136430.

The previous prime is 444631136381. The next prime is 444631136449. The reversal of 444631136431 is 134631136444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444631136431 - 2¹¹ = 444631134383 is a prime.

It is a super-2 number, since 2×444631136431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444631116431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222315568215 + 222315568216.

It is an arithmetic number, because the mean of its divisors is an integer number (222315568216).

Almost surely, 2^444631136431 is an apocalyptic number.

444631136431 is a deficient number, since it is larger than the sum of its proper divisors (1).

444631136431 is an equidigital number, since it uses as much as digits as its factorization.

444631136431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 40.

The spelling of 444631136431 in words is "four hundred forty-four billion, six hundred thirty-one million, one hundred thirty-six thousand, four hundred thirty-one".