496691059621 has 2 divisors, whose sum is σ = 496691059622. Its totient is φ = 496691059620.

The previous prime is 496691059597. The next prime is 496691059643. The reversal of 496691059621 is 126950196694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422189357121 + 74501702500 = 649761^2 + 272950^2 .

It is a cyclic number.

It is not a de Polignac number, because 496691059621 - 2⁵ = 496691059589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (496691059691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248345529810 + 248345529811.

It is an arithmetic number, because the mean of its divisors is an integer number (248345529811).

Almost surely, 2^496691059621 is an apocalyptic number.

It is an amenable number.

496691059621 is a deficient number, since it is larger than the sum of its proper divisors (1).

496691059621 is an equidigital number, since it uses as much as digits as its factorization.

496691059621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6298560, while the sum is 58.

The spelling of 496691059621 in words is "four hundred ninety-six billion, six hundred ninety-one million, fifty-nine thousand, six hundred twenty-one".