30645685736 has 16 divisors (see below), whose sum is σ = 59442063300. Its totient is φ = 14794468864.

The previous prime is 30645685723. The next prime is 30645685753. The reversal of 30645685736 is 63758654603.

It can be written as a sum of positive squares in 2 ways, for example, as 30557137636 + 88548100 = 174806^2 + 9410^2 .

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, 66046505 + ... + 66046968.

Almost surely, 2^30645685736 is an apocalyptic number.

It is an amenable number.

30645685736 is a deficient number, since it is larger than the sum of its proper divisors (28796377564).

30645685736 is a wasteful number, since it uses less digits than its factorization.

30645685736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132093508 (or 132093504 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 30645685736 in words is "thirty billion, six hundred forty-five million, six hundred eighty-five thousand, seven hundred thirty-six".