440187781123 has 2 divisors, whose sum is σ = 440187781124. Its totient is φ = 440187781122.

The previous prime is 440187781013. The next prime is 440187781141. The reversal of 440187781123 is 321187781044.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440187781123 is a prime.

It is a super-2 number, since 2×440187781123² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (440187782123) 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, 220093890561 + 220093890562.

It is an arithmetic number, because the mean of its divisors is an integer number (220093890562).

Almost surely, 2^440187781123 is an apocalyptic number.

440187781123 is a deficient number, since it is larger than the sum of its proper divisors (1).

440187781123 is an equidigital number, since it uses as much as digits as its factorization.

440187781123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 440187781123 in words is "four hundred forty billion, one hundred eighty-seven million, seven hundred eighty-one thousand, one hundred twenty-three".