30645905399 has 2 divisors, whose sum is σ = 30645905400. Its totient is φ = 30645905398.

The previous prime is 30645905371. The next prime is 30645905413. The reversal of 30645905399 is 99350954603.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30645905399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30645905399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30645905309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15322952699 + 15322952700.

It is an arithmetic number, because the mean of its divisors is an integer number (15322952700).

Almost surely, 2^30645905399 is an apocalyptic number.

30645905399 is a deficient number, since it is larger than the sum of its proper divisors (1).

30645905399 is an equidigital number, since it uses as much as digits as its factorization.

30645905399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3936600, while the sum is 53.

The spelling of 30645905399 in words is "thirty billion, six hundred forty-five million, nine hundred five thousand, three hundred ninety-nine".