10891742443 has 2 divisors, whose sum is σ = 10891742444. Its totient is φ = 10891742442.

The previous prime is 10891742441. The next prime is 10891742467. The reversal of 10891742443 is 34424719801.

10891742443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10891742443 - 2¹ = 10891742441 is a prime.

Together with 10891742441, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10891742443.

It is not a weakly prime, because it can be changed into another prime (10891742441) 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, 5445871221 + 5445871222.

It is an arithmetic number, because the mean of its divisors is an integer number (5445871222).

Almost surely, 2^10891742443 is an apocalyptic number.

10891742443 is a deficient number, since it is larger than the sum of its proper divisors (1).

10891742443 is an equidigital number, since it uses as much as digits as its factorization.

10891742443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 10891742443 in words is "ten billion, eight hundred ninety-one million, seven hundred forty-two thousand, four hundred forty-three".