30208193693 has 2 divisors, whose sum is σ = 30208193694. Its totient is φ = 30208193692.

The previous prime is 30208193671. The next prime is 30208193731. The reversal of 30208193693 is 39639180203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29930038009 + 278155684 = 173003^2 + 16678^2 .

It is a cyclic number.

It is not a de Polignac number, because 30208193693 - 2¹⁴ = 30208177309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30208193623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15104096846 + 15104096847.

It is an arithmetic number, because the mean of its divisors is an integer number (15104096847).

Almost surely, 2^30208193693 is an apocalyptic number.

It is an amenable number.

30208193693 is a deficient number, since it is larger than the sum of its proper divisors (1).

30208193693 is an equidigital number, since it uses as much as digits as its factorization.

30208193693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 30208193693 in words is "thirty billion, two hundred eight million, one hundred ninety-three thousand, six hundred ninety-three".