16268927791 has 2 divisors, whose sum is σ = 16268927792. Its totient is φ = 16268927790.

The previous prime is 16268927789. The next prime is 16268927827. The reversal of 16268927791 is 19772986261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16268927791 - 2¹ = 16268927789 is a prime.

It is a super-2 number, since 2×16268927791² (a number of 21 digits) contains 22 as substring.

Together with 16268927789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16268927891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8134463895 + 8134463896.

It is an arithmetic number, because the mean of its divisors is an integer number (8134463896).

Almost surely, 2^16268927791 is an apocalyptic number.

16268927791 is a deficient number, since it is larger than the sum of its proper divisors (1).

16268927791 is an equidigital number, since it uses as much as digits as its factorization.

16268927791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 58.

The spelling of 16268927791 in words is "sixteen billion, two hundred sixty-eight million, nine hundred twenty-seven thousand, seven hundred ninety-one".