8256817946 has 32 divisors (see below), whose sum is σ = 14088442368. Its totient is φ = 3602128320.

The previous prime is 8256817937. The next prime is 8256817951. The reversal of 8256817946 is 6497186528.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8256817891 and 8256817900.

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, 84461 + ... + 153776.

It is an arithmetic number, because the mean of its divisors is an integer number (440263824).

Almost surely, 2^8256817946 is an apocalyptic number.

8256817946 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

8256817946 is a deficient number, since it is larger than the sum of its proper divisors (5831624422).

8256817946 is a wasteful number, since it uses less digits than its factorization.

8256817946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238326.

The product of its digits is 5806080, while the sum is 56.

The square root of 8256817946 is about 90867.0344294343. The cubic root of 8256817946 is about 2021.1764824249.

The spelling of 8256817946 in words is "eight billion, two hundred fifty-six million, eight hundred seventeen thousand, nine hundred forty-six".