30933220865849 has 2 divisors, whose sum is σ = 30933220865850. Its totient is φ = 30933220865848.

The previous prime is 30933220865839. The next prime is 30933220865857. The reversal of 30933220865849 is 94856802233903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29434476876025 + 1498743989824 = 5425355^2 + 1224232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30933220865849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30933220865791 and 30933220865800.

It is not a weakly prime, because it can be changed into another prime (30933220865809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15466610432924 + 15466610432925.

It is an arithmetic number, because the mean of its divisors is an integer number (15466610432925).

Almost surely, 2^{30933220865849} is an apocalyptic number.

It is an amenable number.

30933220865849 is a deficient number, since it is larger than the sum of its proper divisors (1).

30933220865849 is an equidigital number, since it uses as much as digits as its factorization.

30933220865849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67184640, while the sum is 62.

The spelling of 30933220865849 in words is "thirty trillion, nine hundred thirty-three billion, two hundred twenty million, eight hundred sixty-five thousand, eight hundred forty-nine".