10198681811 has 2 divisors, whose sum is σ = 10198681812. Its totient is φ = 10198681810.

The previous prime is 10198681783. The next prime is 10198681861. The reversal of 10198681811 is 11818689101.

It is a weak prime.

It is an emirp because it is prime and its reverse (11818689101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10198681811 - 2²² = 10194487507 is a prime.

It is a super-2 number, since 2×10198681811² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10198681861) 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, 5099340905 + 5099340906.

It is an arithmetic number, because the mean of its divisors is an integer number (5099340906).

Almost surely, 2^10198681811 is an apocalyptic number.

10198681811 is a deficient number, since it is larger than the sum of its proper divisors (1).

10198681811 is an equidigital number, since it uses as much as digits as its factorization.

10198681811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 44.

The spelling of 10198681811 in words is "ten billion, one hundred ninety-eight million, six hundred eighty-one thousand, eight hundred eleven".