820862104086 has 12 divisors (see below), whose sum is σ = 1778534558892. Its totient is φ = 273620701356.

The previous prime is 820862104081. The next prime is 820862104093. The reversal of 820862104086 is 680401268028.

820862104086 is a `hidden beast` number, since 8 + 20 + 8 + 6 + 210 + 408 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820862104081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22801725096 + ... + 22801725131.

It is an arithmetic number, because the mean of its divisors is an integer number (148211213241).

Almost surely, 2^820862104086 is an apocalyptic number.

820862104086 is an abundant number, since it is smaller than the sum of its proper divisors (957672454806).

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

820862104086 is a wasteful number, since it uses less digits than its factorization.

820862104086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45603450235 (or 45603450232 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 820862104086 in words is "eight hundred twenty billion, eight hundred sixty-two million, one hundred four thousand, eighty-six".