10181968399 has 2 divisors, whose sum is σ = 10181968400. Its totient is φ = 10181968398.

The previous prime is 10181968367. The next prime is 10181968429. The reversal of 10181968399 is 99386918101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10181968399 - 2⁵ = 10181968367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10181968309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5090984199 + 5090984200.

It is an arithmetic number, because the mean of its divisors is an integer number (5090984200).

Almost surely, 2^10181968399 is an apocalyptic number.

10181968399 is a deficient number, since it is larger than the sum of its proper divisors (1).

10181968399 is an equidigital number, since it uses as much as digits as its factorization.

10181968399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 55.

The spelling of 10181968399 in words is "ten billion, one hundred eighty-one million, nine hundred sixty-eight thousand, three hundred ninety-nine".