8115826221398 has 32 divisors (see below), whose sum is σ = 14523103996416. Its totient is φ = 3325757992128.

The previous prime is 8115826221397. The next prime is 8115826221403. The reversal of 8115826221398 is 8931226285118.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8115826221397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3771536 + ... + 5518707.

It is an arithmetic number, because the mean of its divisors is an integer number (453846999888).

Almost surely, 2^{8115826221398} is an apocalyptic number.

8115826221398 is a deficient number, since it is larger than the sum of its proper divisors (6407277775018).

8115826221398 is a wasteful number, since it uses less digits than its factorization.

8115826221398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292988.

The product of its digits is 3317760, while the sum is 56.

The spelling of 8115826221398 in words is "eight trillion, one hundred fifteen billion, eight hundred twenty-six million, two hundred twenty-one thousand, three hundred ninety-eight".