8331347878 has 16 divisors (see below), whose sum is σ = 14286115584. Its totient is φ = 3569626440.

The previous prime is 8331347861. The next prime is 8331347951. The reversal of 8331347878 is 8787431338.

It is a super-2 number, since 2×8331347878² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23488 + ... + 131203.

It is an arithmetic number, because the mean of its divisors is an integer number (892882224).

Almost surely, 2^8331347878 is an apocalyptic number.

8331347878 is a deficient number, since it is larger than the sum of its proper divisors (5954767706).

8331347878 is a wasteful number, since it uses less digits than its factorization.

8331347878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158547.

The product of its digits is 2709504, while the sum is 52.

The square root of 8331347878 is about 91276.2174829786. The cubic root of 8331347878 is about 2027.2396398636.

The spelling of 8331347878 in words is "eight billion, three hundred thirty-one million, three hundred forty-seven thousand, eight hundred seventy-eight".