690929481289 has 2 divisors, whose sum is σ = 690929481290. Its totient is φ = 690929481288.

The previous prime is 690929481287. The next prime is 690929481293. The reversal of 690929481289 is 982184929096.

690929481289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 617984654400 + 72944826889 = 786120^2 + 270083^2 .

It is a cyclic number.

It is not a de Polignac number, because 690929481289 - 2¹ = 690929481287 is a prime.

It is a super-2 number, since 2×690929481289² (a number of 24 digits) contains 22 as substring.

Together with 690929481287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (690929481287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345464740644 + 345464740645.

It is an arithmetic number, because the mean of its divisors is an integer number (345464740645).

Almost surely, 2^690929481289 is an apocalyptic number.

It is an amenable number.

690929481289 is a deficient number, since it is larger than the sum of its proper divisors (1).

690929481289 is an equidigital number, since it uses as much as digits as its factorization.

690929481289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40310784, while the sum is 67.

The spelling of 690929481289 in words is "six hundred ninety billion, nine hundred twenty-nine million, four hundred eighty-one thousand, two hundred eighty-nine".