818642848386 has 128 divisors (see below), whose sum is σ = 1811714688000. Its totient is φ = 244554912000.

The previous prime is 818642848363. The next prime is 818642848399. The reversal of 818642848386 is 683848246818.

818642848386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×818642848386² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 869970676 + ... + 869971616.

It is an arithmetic number, because the mean of its divisors is an integer number (14154021000).

Almost surely, 2^818642848386 is an apocalyptic number.

818642848386 is an abundant number, since it is smaller than the sum of its proper divisors (993071839614).

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

818642848386 is a wasteful number, since it uses less digits than its factorization.

818642848386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696.

The product of its digits is 113246208, while the sum is 66.

The spelling of 818642848386 in words is "eight hundred eighteen billion, six hundred forty-two million, eight hundred forty-eight thousand, three hundred eighty-six".