820110842802 has 12 divisors (see below), whose sum is σ = 1776906826110. Its totient is φ = 273370280928.

The previous prime is 820110842801. The next prime is 820110842807. The reversal of 820110842802 is 208248011028.

It can be written as a sum of positive squares in only one way, i.e., 670775742081 + 149335100721 = 819009^2 + 386439^2 .

It is a super-2 number, since 2×820110842802² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (820110842801) 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, 22780856727 + ... + 22780856762.

Almost surely, 2^820110842802 is an apocalyptic number.

820110842802 is an abundant number, since it is smaller than the sum of its proper divisors (956795983308).

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

820110842802 is a wasteful number, since it uses less digits than its factorization.

820110842802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45561713497 (or 45561713494 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The spelling of 820110842802 in words is "eight hundred twenty billion, one hundred ten million, eight hundred forty-two thousand, eight hundred two".