10808192621 has 2 divisors, whose sum is σ = 10808192622. Its totient is φ = 10808192620.

The previous prime is 10808192539. The next prime is 10808192651. The reversal of 10808192621 is 12629180801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8844462025 + 1963730596 = 94045^2 + 44314^2 .

It is an emirp because it is prime and its reverse (12629180801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10808192621 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10808192651) 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, 5404096310 + 5404096311.

It is an arithmetic number, because the mean of its divisors is an integer number (5404096311).

Almost surely, 2^10808192621 is an apocalyptic number.

It is an amenable number.

10808192621 is a deficient number, since it is larger than the sum of its proper divisors (1).

10808192621 is an equidigital number, since it uses as much as digits as its factorization.

10808192621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 38.

The spelling of 10808192621 in words is "ten billion, eight hundred eight million, one hundred ninety-two thousand, six hundred twenty-one".