808749794016 has 144 divisors (see below), whose sum is σ = 2351254533264. Its totient is φ = 263620380672.

The previous prime is 808749794009. The next prime is 808749794033. The reversal of 808749794016 is 610497947808.

808749794016 is a `hidden beast` number, since 80 + 87 + 4 + 9 + 79 + 401 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2490586 + ... + 2796518.

It is an arithmetic number, because the mean of its divisors is an integer number (16328156481).

Almost surely, 2^808749794016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808749794016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1175627266632).

808749794016 is an abundant number, since it is smaller than the sum of its proper divisors (1542504739248).

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

808749794016 is a wasteful number, since it uses less digits than its factorization.

808749794016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306153 (or 306142 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 808749794016 in words is "eight hundred eight billion, seven hundred forty-nine million, seven hundred ninety-four thousand, sixteen".