440364254191 has 2 divisors, whose sum is σ = 440364254192. Its totient is φ = 440364254190.

The previous prime is 440364254173. The next prime is 440364254233. The reversal of 440364254191 is 191452463044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440364254191 - 2⁵ = 440364254159 is a prime.

It is a super-2 number, since 2×440364254191² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440364254111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220182127095 + 220182127096.

It is an arithmetic number, because the mean of its divisors is an integer number (220182127096).

Almost surely, 2^440364254191 is an apocalyptic number.

440364254191 is a deficient number, since it is larger than the sum of its proper divisors (1).

440364254191 is an equidigital number, since it uses as much as digits as its factorization.

440364254191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 440364254191 in words is "four hundred forty billion, three hundred sixty-four million, two hundred fifty-four thousand, one hundred ninety-one".