296690913821 has 2 divisors, whose sum is σ = 296690913822. Its totient is φ = 296690913820.

The previous prime is 296690913749. The next prime is 296690913833. The reversal of 296690913821 is 128319096692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268235947225 + 28454966596 = 517915^2 + 168686^2 .

It is a cyclic number.

It is not a de Polignac number, because 296690913821 - 2²² = 296686719517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (296690913851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148345456910 + 148345456911.

It is an arithmetic number, because the mean of its divisors is an integer number (148345456911).

Almost surely, 2^296690913821 is an apocalyptic number.

It is an amenable number.

296690913821 is a deficient number, since it is larger than the sum of its proper divisors (1).

296690913821 is an equidigital number, since it uses as much as digits as its factorization.

296690913821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 56.

The spelling of 296690913821 in words is "two hundred ninety-six billion, six hundred ninety million, nine hundred thirteen thousand, eight hundred twenty-one".