8158278312899 has 48 divisors (see below), whose sum is σ = 9772554399264. Its totient is φ = 6750027648000.

The previous prime is 8158278312883. The next prime is 8158278312973. The reversal of 8158278312899 is 9982138728518.

It is a Cunningham number, because it is equal to 2856270²-1.

It is not a de Polignac number, because 8158278312899 - 2⁴ = 8158278312883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8158278312869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 482701349 + ... + 482718249.

It is an arithmetic number, because the mean of its divisors is an integer number (203594883318).

Almost surely, 2^{8158278312899} is an apocalyptic number.

8158278312899 is a deficient number, since it is larger than the sum of its proper divisors (1614276086365).

8158278312899 is a wasteful number, since it uses less digits than its factorization.

8158278312899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20568 (or 20555 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 71.

The spelling of 8158278312899 in words is "eight trillion, one hundred fifty-eight billion, two hundred seventy-eight million, three hundred twelve thousand, eight hundred ninety-nine".