30638012056 has 16 divisors (see below), whose sum is σ = 57570891840. Its totient is φ = 15285774240.

The previous prime is 30638012033. The next prime is 30638012099. The reversal of 30638012056 is 65021083603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4150056 + ... + 4157431.

It is an arithmetic number, because the mean of its divisors is an integer number (3598180740).

Almost surely, 2^30638012056 is an apocalyptic number.

It is an amenable number.

30638012056 is a deficient number, since it is larger than the sum of its proper divisors (26932879784).

30638012056 is a wasteful number, since it uses less digits than its factorization.

30638012056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8307954 (or 8307950 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 30638012056 its reverse (65021083603), we get a palindrome (95659095659).

The spelling of 30638012056 in words is "thirty billion, six hundred thirty-eight million, twelve thousand, fifty-six".