431395997863 has 2 divisors, whose sum is σ = 431395997864. Its totient is φ = 431395997862.

The previous prime is 431395997759. The next prime is 431395997867. The reversal of 431395997863 is 368799593134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431395997863 - 2¹⁷ = 431395866791 is a prime.

It is a super-2 number, since 2×431395997863² (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 (431395997867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215697998931 + 215697998932.

It is an arithmetic number, because the mean of its divisors is an integer number (215697998932).

Almost surely, 2^431395997863 is an apocalyptic number.

431395997863 is a deficient number, since it is larger than the sum of its proper divisors (1).

431395997863 is an equidigital number, since it uses as much as digits as its factorization.

431395997863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132269760, while the sum is 67.

The spelling of 431395997863 in words is "four hundred thirty-one billion, three hundred ninety-five million, nine hundred ninety-seven thousand, eight hundred sixty-three".