30638807853161 has 2 divisors, whose sum is σ = 30638807853162. Its totient is φ = 30638807853160.

The previous prime is 30638807853029. The next prime is 30638807853211. The reversal of 30638807853161 is 16135870883603.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23818645789225 + 6820162063936 = 4880435^2 + 2611544^2 .

It is a cyclic number.

It is not a de Polignac number, because 30638807853161 - 2²² = 30638803658857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30638807853161.

It is not a weakly prime, because it can be changed into another prime (30634807853161) by changing a digit.

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 as a sum of consecutive naturals, namely, 15319403926580 + 15319403926581.

It is an arithmetic number, because the mean of its divisors is an integer number (15319403926581).

Almost surely, 2^{30638807853161} is an apocalyptic number.

It is an amenable number.

30638807853161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30638807853161 is an equidigital number, since it uses as much as digits as its factorization.

30638807853161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 30638807853161 in words is "thirty trillion, six hundred thirty-eight billion, eight hundred seven million, eight hundred fifty-three thousand, one hundred sixty-one".