690886051579291 has 2 divisors, whose sum is σ = 690886051579292. Its totient is φ = 690886051579290.

The previous prime is 690886051579279. The next prime is 690886051579379. The reversal of 690886051579291 is 192975150688096.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 690886051579291 - 2⁵ = 690886051579259 is a prime.

It is not a weakly prime, because it can be changed into another prime (690886051579211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345443025789645 + 345443025789646.

It is an arithmetic number, because the mean of its divisors is an integer number (345443025789646).

Almost surely, 2^{690886051579291} is an apocalyptic number.

690886051579291 is a deficient number, since it is larger than the sum of its proper divisors (1).

690886051579291 is an equidigital number, since it uses as much as digits as its factorization.

690886051579291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 587865600, while the sum is 76.

The spelling of 690886051579291 in words is "six hundred ninety trillion, eight hundred eighty-six billion, fifty-one million, five hundred seventy-nine thousand, two hundred ninety-one".