499830477431 has 2 divisors, whose sum is σ = 499830477432. Its totient is φ = 499830477430.

The previous prime is 499830477407. The next prime is 499830477473. The reversal of 499830477431 is 134774038994.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499830477431 - 2³⁴ = 482650608247 is a prime.

It is a super-2 number, since 2×499830477431² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499830477931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249915238715 + 249915238716.

It is an arithmetic number, because the mean of its divisors is an integer number (249915238716).

Almost surely, 2^499830477431 is an apocalyptic number.

499830477431 is a deficient number, since it is larger than the sum of its proper divisors (1).

499830477431 is an equidigital number, since it uses as much as digits as its factorization.

499830477431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 499830477431 in words is "four hundred ninety-nine billion, eight hundred thirty million, four hundred seventy-seven thousand, four hundred thirty-one".