30644612253 has 16 divisors (see below), whose sum is σ = 45594282240. Its totient is φ = 20342056032.

The previous prime is 30644612227. The next prime is 30644612279. The reversal of 30644612253 is 35221644603.

30644612253 is a `hidden beast` number, since 3 + 0 + 644 + 6 + 1 + 2 + 2 + 5 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (30644612227) and next prime (30644612279).

It is not a de Polignac number, because 30644612253 - 2⁸ = 30644611997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30644612203) 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 15 ways as a sum of consecutive naturals, for example, 2429301 + ... + 2441882.

It is an arithmetic number, because the mean of its divisors is an integer number (2849642640).

Almost surely, 2^30644612253 is an apocalyptic number.

It is an amenable number.

30644612253 is a deficient number, since it is larger than the sum of its proper divisors (14949669987).

30644612253 is a wasteful number, since it uses less digits than its factorization.

30644612253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871425 (or 4871419 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 30644612253 in words is "thirty billion, six hundred forty-four million, six hundred twelve thousand, two hundred fifty-three".