690636793013 has 4 divisors (see below), whose sum is σ = 690849234528. Its totient is φ = 690424351500.

The previous prime is 690636793009. The next prime is 690636793069. The reversal of 690636793013 is 310397636096.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 690636793013 - 2² = 690636793009 is a prime.

It is a super-3 number, since 3×690636793013³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690636793513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106215881 + ... + 106222382.

It is an arithmetic number, because the mean of its divisors is an integer number (172712308632).

Almost surely, 2^690636793013 is an apocalyptic number.

It is an amenable number.

690636793013 is a deficient number, since it is larger than the sum of its proper divisors (212441515).

690636793013 is a wasteful number, since it uses less digits than its factorization.

690636793013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212441514.

The product of its (nonzero) digits is 3306744, while the sum is 53.

The spelling of 690636793013 in words is "six hundred ninety billion, six hundred thirty-six million, seven hundred ninety-three thousand, thirteen".