891064608311 has 2 divisors, whose sum is σ = 891064608312. Its totient is φ = 891064608310.

The previous prime is 891064608253. The next prime is 891064608419. The reversal of 891064608311 is 113806460198.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 891064608311 - 2¹⁰ = 891064607287 is a prime.

It is a super-3 number, since 3×891064608311³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (891064608011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445532304155 + 445532304156.

It is an arithmetic number, because the mean of its divisors is an integer number (445532304156).

Almost surely, 2^891064608311 is an apocalyptic number.

891064608311 is a deficient number, since it is larger than the sum of its proper divisors (1).

891064608311 is an equidigital number, since it uses as much as digits as its factorization.

891064608311 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 47.

The spelling of 891064608311 in words is "eight hundred ninety-one billion, sixty-four million, six hundred eight thousand, three hundred eleven".