30745369685 has 4 divisors (see below), whose sum is σ = 36894443628. Its totient is φ = 24596295744.

The previous prime is 30745369673. The next prime is 30745369691. The reversal of 30745369685 is 58696354703.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17455430161 + 13289939524 = 132119^2 + 115282^2 .

It is a cyclic number.

It is not a de Polignac number, because 30745369685 - 2⁸ = 30745369429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30745369685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3074536964 + ... + 3074536973.

It is an arithmetic number, because the mean of its divisors is an integer number (9223610907).

Almost surely, 2^30745369685 is an apocalyptic number.

It is an amenable number.

30745369685 is a deficient number, since it is larger than the sum of its proper divisors (6149073943).

30745369685 is an equidigital number, since it uses as much as digits as its factorization.

30745369685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6149073942.

The product of its (nonzero) digits is 16329600, while the sum is 56.

The spelling of 30745369685 in words is "thirty billion, seven hundred forty-five million, three hundred sixty-nine thousand, six hundred eighty-five".