8439845390193 has 96 divisors (see below), whose sum is σ = 13567083543552. Its totient is φ = 4648427481600.

The previous prime is 8439845390153. The next prime is 8439845390233. The reversal of 8439845390193 is 3910935489348.

It is an interprime number because it is at equal distance from previous prime (8439845390153) and next prime (8439845390233).

It is not a de Polignac number, because 8439845390193 - 2⁹ = 8439845389681 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8439845390153) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1449893223 + ... + 1449899043.

It is an arithmetic number, because the mean of its divisors is an integer number (141323786912).

Almost surely, 2^{8439845390193} is an apocalyptic number.

It is an amenable number.

8439845390193 is a deficient number, since it is larger than the sum of its proper divisors (5127238153359).

8439845390193 is a wasteful number, since it uses less digits than its factorization.

8439845390193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7095 (or 7088 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 66.

The spelling of 8439845390193 in words is "eight trillion, four hundred thirty-nine billion, eight hundred forty-five million, three hundred ninety thousand, one hundred ninety-three".