690590537369 has 8 divisors (see below), whose sum is σ = 694989694560. Its totient is φ = 686193361056.

The previous prime is 690590537347. The next prime is 690590537389. The reversal of 690590537369 is 963735095096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-690590537369 is a prime.

It is a super-2 number, since 2×690590537369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690590537339) 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 in 7 ways as a sum of consecutive naturals, for example, 207422 + ... + 1193400.

It is an arithmetic number, because the mean of its divisors is an integer number (86873711820).

Almost surely, 2^690590537369 is an apocalyptic number.

It is an amenable number.

690590537369 is a deficient number, since it is larger than the sum of its proper divisors (4399157191).

690590537369 is a wasteful number, since it uses less digits than its factorization.

690590537369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990439.

The product of its (nonzero) digits is 41334300, while the sum is 62.

The spelling of 690590537369 in words is "six hundred ninety billion, five hundred ninety million, five hundred thirty-seven thousand, three hundred sixty-nine".