438985079399 has 4 divisors (see below), whose sum is σ = 454122495960. Its totient is φ = 423847662840.

The previous prime is 438985079389. The next prime is 438985079413. The reversal of 438985079399 is 993970589834.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 438985079399 - 2¹² = 438985075303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438985079329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7568708237 + ... + 7568708294.

It is an arithmetic number, because the mean of its divisors is an integer number (113530623990).

Almost surely, 2^438985079399 is an apocalyptic number.

438985079399 is a deficient number, since it is larger than the sum of its proper divisors (15137416561).

438985079399 is a wasteful number, since it uses less digits than its factorization.

438985079399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15137416560.

The product of its (nonzero) digits is 529079040, while the sum is 74.

The spelling of 438985079399 in words is "four hundred thirty-eight billion, nine hundred eighty-five million, seventy-nine thousand, three hundred ninety-nine".