40443414112891 has 2 divisors, whose sum is σ = 40443414112892. Its totient is φ = 40443414112890.

The previous prime is 40443414112889. The next prime is 40443414113027. The reversal of 40443414112891 is 19821141434404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40443414112891 - 2¹ = 40443414112889 is a prime.

Together with 40443414112889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40443414112291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20221707056445 + 20221707056446.

It is an arithmetic number, because the mean of its divisors is an integer number (20221707056446).

Almost surely, 2^{40443414112891} is an apocalyptic number.

40443414112891 is a deficient number, since it is larger than the sum of its proper divisors (1).

40443414112891 is an equidigital number, since it uses as much as digits as its factorization.

40443414112891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 40443414112891 in words is "forty trillion, four hundred forty-three billion, four hundred fourteen million, one hundred twelve thousand, eight hundred ninety-one".