65914810891 has 2 divisors, whose sum is σ = 65914810892. Its totient is φ = 65914810890.

The previous prime is 65914810883. The next prime is 65914810903. The reversal of 65914810891 is 19801841956.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65914810891 - 2³ = 65914810883 is a prime.

It is not a weakly prime, because it can be changed into another prime (65914811891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32957405445 + 32957405446.

It is an arithmetic number, because the mean of its divisors is an integer number (32957405446).

Almost surely, 2^65914810891 is an apocalyptic number.

65914810891 is a deficient number, since it is larger than the sum of its proper divisors (1).

65914810891 is an equidigital number, since it uses as much as digits as its factorization.

65914810891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 52.

The spelling of 65914810891 in words is "sixty-five billion, nine hundred fourteen million, eight hundred ten thousand, eight hundred ninety-one".