785874322818 has 54 divisors (see below), whose sum is σ = 1843896785211. Its totient is φ = 241792439616.

The previous prime is 785874322801. The next prime is 785874322823. The reversal of 785874322818 is 818223478587.

785874322818 is a `hidden beast` number, since 7 + 8 + 587 + 4 + 32 + 2 + 8 + 18 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 1804805289 + 784069517529 = 42483^2 + 885477^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=626847.

It is a super-2 number, since 2×785874322818² (a number of 25 digits) contains 22 as substring.

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 26 ways as a sum of consecutive naturals, for example, 48886030 + ... + 48902102.

Almost surely, 2^785874322818 is an apocalyptic number.

785874322818 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

785874322818 is an abundant number, since it is smaller than the sum of its proper divisors (1058022462393).

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

785874322818 is an equidigital number, since it uses as much as digits as its factorization.

785874322818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32180 (or 16091 counting only the distinct ones).

The product of its digits is 48168960, while the sum is 63.

The spelling of 785874322818 in words is "seven hundred eighty-five billion, eight hundred seventy-four million, three hundred twenty-two thousand, eight hundred eighteen".