10989474369191 has 2 divisors, whose sum is σ = 10989474369192. Its totient is φ = 10989474369190.

The previous prime is 10989474369187. The next prime is 10989474369229. The reversal of 10989474369191 is 19196347498901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10989474369191 - 2² = 10989474369187 is a prime.

It is a super-2 number, since 2×10989474369191² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10989474369121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5494737184595 + 5494737184596.

It is an arithmetic number, because the mean of its divisors is an integer number (5494737184596).

Almost surely, 2^{10989474369191} is an apocalyptic number.

10989474369191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10989474369191 is an equidigital number, since it uses as much as digits as its factorization.

10989474369191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105815808, while the sum is 71.

The spelling of 10989474369191 in words is "ten trillion, nine hundred eighty-nine billion, four hundred seventy-four million, three hundred sixty-nine thousand, one hundred ninety-one".