690718882933 has 2 divisors, whose sum is σ = 690718882934. Its totient is φ = 690718882932.

The previous prime is 690718882859. The next prime is 690718882979. The reversal of 690718882933 is 339288817096.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 645784210449 + 44934672484 = 803607^2 + 211978^2 .

It is a cyclic number.

It is not a de Polignac number, because 690718882933 - 2⁹ = 690718882421 is a prime.

It is a super-2 number, since 2×690718882933² (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 (690718882033) 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, 345359441466 + 345359441467.

It is an arithmetic number, because the mean of its divisors is an integer number (345359441467).

Almost surely, 2^690718882933 is an apocalyptic number.

It is an amenable number.

690718882933 is a deficient number, since it is larger than the sum of its proper divisors (1).

690718882933 is an equidigital number, since it uses as much as digits as its factorization.

690718882933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 690718882933 in words is "six hundred ninety billion, seven hundred eighteen million, eight hundred eighty-two thousand, nine hundred thirty-three".