440534421487 has 2 divisors, whose sum is σ = 440534421488. Its totient is φ = 440534421486.

The previous prime is 440534421427. The next prime is 440534421511. The reversal of 440534421487 is 784124435044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 440534421487 - 2⁷ = 440534421359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440534421427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220267210743 + 220267210744.

It is an arithmetic number, because the mean of its divisors is an integer number (220267210744).

Almost surely, 2^440534421487 is an apocalyptic number.

440534421487 is a deficient number, since it is larger than the sum of its proper divisors (1).

440534421487 is an equidigital number, since it uses as much as digits as its factorization.

440534421487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1720320, while the sum is 46.

The spelling of 440534421487 in words is "four hundred forty billion, five hundred thirty-four million, four hundred twenty-one thousand, four hundred eighty-seven".