996291804491 has 2 divisors, whose sum is σ = 996291804492. Its totient is φ = 996291804490.

The previous prime is 996291804479. The next prime is 996291804509. The reversal of 996291804491 is 194408192699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 996291804491 - 2²² = 996287610187 is a prime.

It is not a weakly prime, because it can be changed into another prime (996291804451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498145902245 + 498145902246.

It is an arithmetic number, because the mean of its divisors is an integer number (498145902246).

Almost surely, 2^996291804491 is an apocalyptic number.

996291804491 is a deficient number, since it is larger than the sum of its proper divisors (1).

996291804491 is an equidigital number, since it uses as much as digits as its factorization.

996291804491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10077696, while the sum is 62.

The spelling of 996291804491 in words is "nine hundred ninety-six billion, two hundred ninety-one million, eight hundred four thousand, four hundred ninety-one".