439374521407 has 2 divisors, whose sum is σ = 439374521408. Its totient is φ = 439374521406.

The previous prime is 439374521389. The next prime is 439374521423. The reversal of 439374521407 is 704125473934.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439374521407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (439374521497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219687260703 + 219687260704.

It is an arithmetic number, because the mean of its divisors is an integer number (219687260704).

Almost surely, 2^439374521407 is an apocalyptic number.

439374521407 is a deficient number, since it is larger than the sum of its proper divisors (1).

439374521407 is an equidigital number, since it uses as much as digits as its factorization.

439374521407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 439374521407 in words is "four hundred thirty-nine billion, three hundred seventy-four million, five hundred twenty-one thousand, four hundred seven".