690320340709 has 8 divisors (see below), whose sum is σ = 728465100480. Its totient is φ = 652356792000.

The previous prime is 690320340667. The next prime is 690320340727. The reversal of 690320340709 is 907043023096.

690320340709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 690320340709 - 2¹³ = 690320332517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690320340509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45294937 + ... + 45310174.

It is an arithmetic number, because the mean of its divisors is an integer number (91058137560).

Almost surely, 2^690320340709 is an apocalyptic number.

It is an amenable number.

690320340709 is a deficient number, since it is larger than the sum of its proper divisors (38144759771).

690320340709 is a wasteful number, since it uses less digits than its factorization.

690320340709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90605531.

The product of its (nonzero) digits is 244944, while the sum is 43.

The spelling of 690320340709 in words is "six hundred ninety billion, three hundred twenty million, three hundred forty thousand, seven hundred nine".