30669839953 has 2 divisors, whose sum is σ = 30669839954. Its totient is φ = 30669839952.

The previous prime is 30669839947. The next prime is 30669839971. The reversal of 30669839953 is 35993896603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21733540929 + 8936299024 = 147423^2 + 94532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30669839953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30669839891 and 30669839900.

It is not a weakly prime, because it can be changed into another prime (30669839903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15334919976 + 15334919977.

It is an arithmetic number, because the mean of its divisors is an integer number (15334919977).

Almost surely, 2^30669839953 is an apocalyptic number.

It is an amenable number.

30669839953 is a deficient number, since it is larger than the sum of its proper divisors (1).

30669839953 is an equidigital number, since it uses as much as digits as its factorization.

30669839953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28343520, while the sum is 61.

The spelling of 30669839953 in words is "thirty billion, six hundred sixty-nine million, eight hundred thirty-nine thousand, nine hundred fifty-three".