84261256808 has 32 divisors (see below), whose sum is σ = 158990549760. Its totient is φ = 41863951680.

The previous prime is 84261256757. The next prime is 84261256843. The reversal of 84261256808 is 80865216248.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4614785 + ... + 4633007.

It is an arithmetic number, because the mean of its divisors is an integer number (4968454680).

Almost surely, 2^84261256808 is an apocalyptic number.

It is an amenable number.

84261256808 is a deficient number, since it is larger than the sum of its proper divisors (74729292952).

84261256808 is a wasteful number, since it uses less digits than its factorization.

84261256808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21857 (or 21853 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 50.

The spelling of 84261256808 in words is "eighty-four billion, two hundred sixty-one million, two hundred fifty-six thousand, eight hundred eight".