8118085750399 has 4 divisors (see below), whose sum is σ = 8215894012536. Its totient is φ = 8020277488264.

The previous prime is 8118085750363. The next prime is 8118085750403. The reversal of 8118085750399 is 9930575808118.

It is a happy number.

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 8118085750399 - 2¹⁷ = 8118085619327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8118085750399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8118085750319) 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, 48904130944 + ... + 48904131109.

It is an arithmetic number, because the mean of its divisors is an integer number (2053973503134).

Almost surely, 2^{8118085750399} is an apocalyptic number.

8118085750399 is a deficient number, since it is larger than the sum of its proper divisors (97808262137).

8118085750399 is an equidigital number, since it uses as much as digits as its factorization.

8118085750399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97808262136.

The product of its (nonzero) digits is 21772800, while the sum is 64.

It can be divided in two parts, 8118085 and 750399, that added together give a square (8868484 = 2978²).

The spelling of 8118085750399 in words is "eight trillion, one hundred eighteen billion, eighty-five million, seven hundred fifty thousand, three hundred ninety-nine".