1711192891 has 2 divisors, whose sum is σ = 1711192892. Its totient is φ = 1711192890.

The previous prime is 1711192859. The next prime is 1711192913. The reversal of 1711192891 is 1982911171.

It is a strong prime.

It is an emirp because it is prime and its reverse (1982911171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1711192891 - 2⁵ = 1711192859 is a prime.

It is a super-2 number, since 2×1711192891² = 5856362220417875762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1711192831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 855596445 + 855596446.

It is an arithmetic number, because the mean of its divisors is an integer number (855596446).

Almost surely, 2^1711192891 is an apocalyptic number.

1711192891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1711192891 is an equidigital number, since it uses as much as digits as its factorization.

1711192891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 40.

The square root of 1711192891 is about 41366.5673098458. The cubic root of 1711192891 is about 1196.0967833577.

The spelling of 1711192891 in words is "one billion, seven hundred eleven million, one hundred ninety-two thousand, eight hundred ninety-one".