10891766027 has 2 divisors, whose sum is σ = 10891766028. Its totient is φ = 10891766026.

The previous prime is 10891766009. The next prime is 10891766029. The reversal of 10891766027 is 72066719801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10891766027 - 2¹² = 10891761931 is a prime.

It is a super-2 number, since 2×10891766027² (a number of 21 digits) contains 22 as substring.

Together with 10891766029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10891766029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5445883013 + 5445883014.

It is an arithmetic number, because the mean of its divisors is an integer number (5445883014).

Almost surely, 2^10891766027 is an apocalyptic number.

10891766027 is a deficient number, since it is larger than the sum of its proper divisors (1).

10891766027 is an equidigital number, since it uses as much as digits as its factorization.

10891766027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 47.

The spelling of 10891766027 in words is "ten billion, eight hundred ninety-one million, seven hundred sixty-six thousand, twenty-seven".