820541054188 has 12 divisors (see below), whose sum is σ = 1436272561080. Its totient is φ = 410177465312.

The previous prime is 820541054183. The next prime is 820541054189. The reversal of 820541054188 is 881450145028.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (820541054183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23245606 + ... + 23280877.

It is an arithmetic number, because the mean of its divisors is an integer number (119689380090).

Almost surely, 2^820541054188 is an apocalyptic number.

It is an amenable number.

820541054188 is a deficient number, since it is larger than the sum of its proper divisors (615731506892).

820541054188 is a wasteful number, since it uses less digits than its factorization.

820541054188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46530896 (or 46530894 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 46.

The spelling of 820541054188 in words is "eight hundred twenty billion, five hundred forty-one million, fifty-four thousand, one hundred eighty-eight".