400042404599 has 2 divisors, whose sum is σ = 400042404600. Its totient is φ = 400042404598.

The previous prime is 400042404563. The next prime is 400042404649. The reversal of 400042404599 is 995404240004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400042404599 - 2²⁰ = 400041356023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400042400599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200021202299 + 200021202300.

It is an arithmetic number, because the mean of its divisors is an integer number (200021202300).

Almost surely, 2^400042404599 is an apocalyptic number.

400042404599 is a deficient number, since it is larger than the sum of its proper divisors (1).

400042404599 is an equidigital number, since it uses as much as digits as its factorization.

400042404599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 400042404599 in words is "four hundred billion, forty-two million, four hundred four thousand, five hundred ninety-nine".