699603609631 has 2 divisors, whose sum is σ = 699603609632. Its totient is φ = 699603609630.

The previous prime is 699603609583. The next prime is 699603609697. The reversal of 699603609631 is 136906306996.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 699603609631 - 2⁷ = 699603609503 is a prime.

It is a super-2 number, since 2×699603609631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699603609431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349801804815 + 349801804816.

It is an arithmetic number, because the mean of its divisors is an integer number (349801804816).

Almost surely, 2^699603609631 is an apocalyptic number.

699603609631 is a deficient number, since it is larger than the sum of its proper divisors (1).

699603609631 is an equidigital number, since it uses as much as digits as its factorization.

699603609631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8503056, while the sum is 58.

The spelling of 699603609631 in words is "six hundred ninety-nine billion, six hundred three million, six hundred nine thousand, six hundred thirty-one".