805191819048 has 128 divisors (see below), whose sum is σ = 2389502592000. Its totient is φ = 250475924160.

The previous prime is 805191819023. The next prime is 805191819083. The reversal of 805191819048 is 840918191508.

805191819048 is a `hidden beast` number, since 8 + 0 + 519 + 1 + 81 + 9 + 0 + 48 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 805191818985 and 805191819003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1189188 + ... + 1739123.

It is an arithmetic number, because the mean of its divisors is an integer number (18667989000).

Almost surely, 2^805191819048 is an apocalyptic number.

It is an amenable number.

805191819048 is an abundant number, since it is smaller than the sum of its proper divisors (1584310772952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805191819048 is a wasteful number, since it uses less digits than its factorization.

805191819048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928412 (or 2928402 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 54.

The spelling of 805191819048 in words is "eight hundred five billion, one hundred ninety-one million, eight hundred nineteen thousand, forty-eight".