30505082819 has 2 divisors, whose sum is σ = 30505082820. Its totient is φ = 30505082818.

The previous prime is 30505082791. The next prime is 30505082843. The reversal of 30505082819 is 91828050503.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30505082819 is a prime.

It is a super-2 number, since 2×30505082819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30505082849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15252541409 + 15252541410.

It is an arithmetic number, because the mean of its divisors is an integer number (15252541410).

Almost surely, 2^30505082819 is an apocalyptic number.

30505082819 is a deficient number, since it is larger than the sum of its proper divisors (1).

30505082819 is an equidigital number, since it uses as much as digits as its factorization.

30505082819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 30505082819 in words is "thirty billion, five hundred five million, eighty-two thousand, eight hundred nineteen".