8256017878 has 8 divisors (see below), whose sum is σ = 12385215360. Its totient is φ = 4127612760.

The previous prime is 8256017863. The next prime is 8256017899. The reversal of 8256017878 is 8787106528.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171318 + ... + 214153.

It is an arithmetic number, because the mean of its divisors is an integer number (1548151920).

Almost surely, 2^8256017878 is an apocalyptic number.

8256017878 is a deficient number, since it is larger than the sum of its proper divisors (4129197482).

8256017878 is a wasteful number, since it uses less digits than its factorization.

8256017878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396182.

The product of its (nonzero) digits is 1505280, while the sum is 52.

The square root of 8256017878 is about 90862.6319121343. The cubic root of 8256017878 is about 2021.1111977567. Note that the first 4 decimals are identical.

The spelling of 8256017878 in words is "eight billion, two hundred fifty-six million, seventeen thousand, eight hundred seventy-eight".