10608809891 has 2 divisors, whose sum is σ = 10608809892. Its totient is φ = 10608809890.

The previous prime is 10608809843. The next prime is 10608809951. The reversal of 10608809891 is 19890880601.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (19890880601) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 16860880901 and 10908806861.

It is a cyclic number.

It is not a de Polignac number, because 10608809891 - 2²² = 10604615587 is a prime.

It is a super-2 number, since 2×10608809891² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10608809191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5304404945 + 5304404946.

It is an arithmetic number, because the mean of its divisors is an integer number (5304404946).

Almost surely, 2^10608809891 is an apocalyptic number.

10608809891 is a deficient number, since it is larger than the sum of its proper divisors (1).

10608809891 is an equidigital number, since it uses as much as digits as its factorization.

10608809891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 50.

The spelling of 10608809891 in words is "ten billion, six hundred eight million, eight hundred nine thousand, eight hundred ninety-one".