408796447831 has 2 divisors, whose sum is σ = 408796447832. Its totient is φ = 408796447830.

The previous prime is 408796447811. The next prime is 408796447837. The reversal of 408796447831 is 138744697804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 408796447831 - 2²³ = 408788059223 is a prime.

It is a super-2 number, since 2×408796447831² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 408796447831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408796447837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204398223915 + 204398223916.

It is an arithmetic number, because the mean of its divisors is an integer number (204398223916).

Almost surely, 2^408796447831 is an apocalyptic number.

408796447831 is a deficient number, since it is larger than the sum of its proper divisors (1).

408796447831 is an equidigital number, since it uses as much as digits as its factorization.

408796447831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32514048, while the sum is 61.

The spelling of 408796447831 in words is "four hundred eight billion, seven hundred ninety-six million, four hundred forty-seven thousand, eight hundred thirty-one".