8790449559438 has 16 divisors (see below), whose sum is σ = 18345286037376. Its totient is φ = 2802752033400.

The previous prime is 8790449559413. The next prime is 8790449559439. The reversal of 8790449559438 is 8349559440978.

It is a self number, because there is not a number n which added to its sum of digits gives 8790449559438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8790449559439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31849454788 + ... + 31849455063.

It is an arithmetic number, because the mean of its divisors is an integer number (1146580377336).

Almost surely, 2^{8790449559438} is an apocalyptic number.

8790449559438 is an abundant number, since it is smaller than the sum of its proper divisors (9554836477938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8790449559438 is a wasteful number, since it uses less digits than its factorization.

8790449559438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63698909879.

The product of its (nonzero) digits is 1567641600, while the sum is 75.

The spelling of 8790449559438 in words is "eight trillion, seven hundred ninety billion, four hundred forty-nine million, five hundred fifty-nine thousand, four hundred thirty-eight".