30638807853085 has 8 divisors (see below), whose sum is σ = 36766704449880. Its totient is φ = 24510956265024.

The previous prime is 30638807853029. The next prime is 30638807853161. The reversal of 30638807853085 is 58035870883603.

It can be written as a sum of positive squares in 4 ways, for example, as 2166957699481 + 28471850153604 = 1472059^2 + 5335902^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30638807853085 - 2²¹ = 30638805755933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9736002 + ... + 12492691.

It is an arithmetic number, because the mean of its divisors is an integer number (4595838056235).

Almost surely, 2^{30638807853085} is an apocalyptic number.

It is an amenable number.

30638807853085 is a deficient number, since it is larger than the sum of its proper divisors (6127896596795).

30638807853085 is a wasteful number, since it uses less digits than its factorization.

30638807853085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22504367.

The product of its (nonzero) digits is 116121600, while the sum is 64.

The spelling of 30638807853085 in words is "thirty trillion, six hundred thirty-eight billion, eight hundred seven million, eight hundred fifty-three thousand, eighty-five".