30669839971 has 2 divisors, whose sum is σ = 30669839972. Its totient is φ = 30669839970.

The previous prime is 30669839953. The next prime is 30669839983. The reversal of 30669839971 is 17993896603.

It is a strong prime.

It is an emirp because it is prime and its reverse (17993896603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30669839971 - 2¹⁹ = 30669315683 is a prime.

It is not a weakly prime, because it can be changed into another prime (30669839471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15334919985 + 15334919986.

It is an arithmetic number, because the mean of its divisors is an integer number (15334919986).

Almost surely, 2^30669839971 is an apocalyptic number.

30669839971 is a deficient number, since it is larger than the sum of its proper divisors (1).

30669839971 is an equidigital number, since it uses as much as digits as its factorization.

30669839971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13226976, while the sum is 61.

The spelling of 30669839971 in words is "thirty billion, six hundred sixty-nine million, eight hundred thirty-nine thousand, nine hundred seventy-one".