818889704486 has 32 divisors (see below), whose sum is σ = 1405618297920. Its totient is φ = 350501184000.

The previous prime is 818889704467. The next prime is 818889704497. The reversal of 818889704486 is 684407988818.

It is a super-2 number, since 2×818889704486² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 38253386 + ... + 38274786.

It is an arithmetic number, because the mean of its divisors is an integer number (43925571810).

Almost surely, 2^818889704486 is an apocalyptic number.

818889704486 is a deficient number, since it is larger than the sum of its proper divisors (586728593434).

818889704486 is a wasteful number, since it uses less digits than its factorization.

818889704486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24800.

The product of its (nonzero) digits is 198180864, while the sum is 71.

The spelling of 818889704486 in words is "eight hundred eighteen billion, eight hundred eighty-nine million, seven hundred four thousand, four hundred eighty-six".