40444501632439 has 2 divisors, whose sum is σ = 40444501632440. Its totient is φ = 40444501632438.

The previous prime is 40444501632433. The next prime is 40444501632467. The reversal of 40444501632439 is 93423610544404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40444501632439 - 2³⁵ = 40410141894071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40444501632392 and 40444501632401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40444501632433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222250816219 + 20222250816220.

It is an arithmetic number, because the mean of its divisors is an integer number (20222250816220).

Almost surely, 2^{40444501632439} is an apocalyptic number.

40444501632439 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444501632439 is an equidigital number, since it uses as much as digits as its factorization.

40444501632439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 40444501632439 in words is "forty trillion, four hundred forty-four billion, five hundred one million, six hundred thirty-two thousand, four hundred thirty-nine".