818675685828 has 1152 divisors, whose sum is σ = 3106717286400. Its totient is φ = 174593802240.

The previous prime is 818675685803. The next prime is 818675685833. The reversal of 818675685828 is 828586576818.

It is a happy number.

818675685828 is a `hidden beast` number, since 8 + 1 + 8 + 6 + 7 + 568 + 58 + 2 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1366737073 + ... + 1366737671.

It is an arithmetic number, because the mean of its divisors is an integer number (2696803200).

Almost surely, 2^818675685828 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 818675685828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553358643200).

818675685828 is an abundant number, since it is smaller than the sum of its proper divisors (2288041600572).

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

818675685828 is a wasteful number, since it uses less digits than its factorization.

818675685828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 772 counting only the distinct ones).

The product of its digits is 412876800, while the sum is 72.

The spelling of 818675685828 in words is "eight hundred eighteen billion, six hundred seventy-five million, six hundred eighty-five thousand, eight hundred twenty-eight".