30839615797 has 2 divisors, whose sum is σ = 30839615798. Its totient is φ = 30839615796.

The previous prime is 30839615789. The next prime is 30839615801. The reversal of 30839615797 is 79751693803.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29823217636 + 1016398161 = 172694^2 + 31881^2 .

It is a cyclic number.

It is not a de Polignac number, because 30839615797 - 2³ = 30839615789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30839615897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15419807898 + 15419807899.

It is an arithmetic number, because the mean of its divisors is an integer number (15419807899).

Almost surely, 2^30839615797 is an apocalyptic number.

It is an amenable number.

30839615797 is a deficient number, since it is larger than the sum of its proper divisors (1).

30839615797 is an equidigital number, since it uses as much as digits as its factorization.

30839615797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The spelling of 30839615797 in words is "thirty billion, eight hundred thirty-nine million, six hundred fifteen thousand, seven hundred ninety-seven".