690929481233 has 2 divisors, whose sum is σ = 690929481234. Its totient is φ = 690929481232.

The previous prime is 690929481181. The next prime is 690929481287. The reversal of 690929481233 is 332184929096.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 670413788944 + 20515692289 = 818788^2 + 143233^2 .

It is a cyclic number.

It is not a de Polignac number, because 690929481233 - 2¹⁸ = 690929219089 is a prime.

It is not a weakly prime, because it can be changed into another prime (690929481293) 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, 345464740616 + 345464740617.

It is an arithmetic number, because the mean of its divisors is an integer number (345464740617).

Almost surely, 2^690929481233 is an apocalyptic number.

It is an amenable number.

690929481233 is a deficient number, since it is larger than the sum of its proper divisors (1).

690929481233 is an equidigital number, since it uses as much as digits as its factorization.

690929481233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5038848, while the sum is 56.

The spelling of 690929481233 in words is "six hundred ninety billion, nine hundred twenty-nine million, four hundred eighty-one thousand, two hundred thirty-three".