911989854043 has 2 divisors, whose sum is σ = 911989854044. Its totient is φ = 911989854042.

The previous prime is 911989854031. The next prime is 911989854059. The reversal of 911989854043 is 340458989119.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 911989854043 - 2⁵ = 911989854011 is a prime.

It is not a weakly prime, because it can be changed into another prime (911989854073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455994927021 + 455994927022.

It is an arithmetic number, because the mean of its divisors is an integer number (455994927022).

Almost surely, 2^911989854043 is an apocalyptic number.

911989854043 is a deficient number, since it is larger than the sum of its proper divisors (1).

911989854043 is an equidigital number, since it uses as much as digits as its factorization.

911989854043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11197440, while the sum is 61.

The spelling of 911989854043 in words is "nine hundred eleven billion, nine hundred eighty-nine million, eight hundred fifty-four thousand, forty-three".