30690835345 has 16 divisors (see below), whose sum is σ = 37541953872. Its totient is φ = 24077813760.

The previous prime is 30690835321. The next prime is 30690835393. The reversal of 30690835345 is 54353809603.

It is a Cunningham number, because it is equal to 175188²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 231161616 + 30459673729 = 15204^2 + 174527^2 .

It is not a de Polignac number, because 30690835345 - 2⁵ = 30690835313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30690835295 and 30690835304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545869 + ... + 599461.

It is an arithmetic number, because the mean of its divisors is an integer number (2346372117).

Almost surely, 2^30690835345 is an apocalyptic number.

It is an amenable number.

30690835345 is a deficient number, since it is larger than the sum of its proper divisors (6851118527).

30690835345 is a wasteful number, since it uses less digits than its factorization.

30690835345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55812.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 30690835345 in words is "thirty billion, six hundred ninety million, eight hundred thirty-five thousand, three hundred forty-five".