431216400499 has 2 divisors, whose sum is σ = 431216400500. Its totient is φ = 431216400498.

The previous prime is 431216400491. The next prime is 431216400541. The reversal of 431216400499 is 994004612134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431216400499 - 2³ = 431216400491 is a prime.

It is not a weakly prime, because it can be changed into another prime (431216400491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215608200249 + 215608200250.

It is an arithmetic number, because the mean of its divisors is an integer number (215608200250).

Almost surely, 2^431216400499 is an apocalyptic number.

431216400499 is a deficient number, since it is larger than the sum of its proper divisors (1).

431216400499 is an equidigital number, since it uses as much as digits as its factorization.

431216400499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 431216400499 in words is "four hundred thirty-one billion, two hundred sixteen million, four hundred thousand, four hundred ninety-nine".