8133801385 has 16 divisors (see below), whose sum is σ = 10351158912. Its totient is φ = 6114528000.

The previous prime is 8133801343. The next prime is 8133801391. The reversal of 8133801385 is 5831083318.

It is not a de Polignac number, because 8133801385 - 2¹⁷ = 8133670313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22191 + ... + 129460.

It is an arithmetic number, because the mean of its divisors is an integer number (646947432).

Almost surely, 2^8133801385 is an apocalyptic number.

8133801385 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8133801385 is a deficient number, since it is larger than the sum of its proper divisors (2217357527).

8133801385 is a wasteful number, since it uses less digits than its factorization.

8133801385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152304.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 8133801385 is about 90187.5899722351. The cubic root of 8133801385 is about 2011.0885241170.

The spelling of 8133801385 in words is "eight billion, one hundred thirty-three million, eight hundred one thousand, three hundred eighty-five".