690068971037 has 2 divisors, whose sum is σ = 690068971038. Its totient is φ = 690068971036.

The previous prime is 690068970979. The next prime is 690068971079. The reversal of 690068971037 is 730179860096.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403465065721 + 286603905316 = 635189^2 + 535354^2 .

It is a cyclic number.

It is not a de Polignac number, because 690068971037 - 2¹⁸ = 690068708893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690068971337) 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, 345034485518 + 345034485519.

It is an arithmetic number, because the mean of its divisors is an integer number (345034485519).

Almost surely, 2^690068971037 is an apocalyptic number.

It is an amenable number.

690068971037 is a deficient number, since it is larger than the sum of its proper divisors (1).

690068971037 is an equidigital number, since it uses as much as digits as its factorization.

690068971037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The spelling of 690068971037 in words is "six hundred ninety billion, sixty-eight million, nine hundred seventy-one thousand, thirty-seven".