30688264819 has 2 divisors, whose sum is σ = 30688264820. Its totient is φ = 30688264818.

The previous prime is 30688264813. The next prime is 30688264823. The reversal of 30688264819 is 91846288603.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30688264819 - 2⁵ = 30688264787 is a prime.

It is a super-2 number, since 2×30688264819² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30688264819.

It is not a weakly prime, because it can be changed into another prime (30688264813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15344132409 + 15344132410.

It is an arithmetic number, because the mean of its divisors is an integer number (15344132410).

Almost surely, 2^30688264819 is an apocalyptic number.

30688264819 is a deficient number, since it is larger than the sum of its proper divisors (1).

30688264819 is an equidigital number, since it uses as much as digits as its factorization.

30688264819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 30688264819 in words is "thirty billion, six hundred eighty-eight million, two hundred sixty-four thousand, eight hundred nineteen".