823554020052 has 72 divisors (see below), whose sum is σ = 2180348876160. Its totient is φ = 261606227520.

The previous prime is 823554019997. The next prime is 823554020059. The reversal of 823554020052 is 250020455328.

It is a happy number.

823554020052 is a `hidden beast` number, since 82 + 3 + 554 + 0 + 20 + 0 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 823554019989 and 823554020016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823554020059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1626024 + ... + 2071487.

It is an arithmetic number, because the mean of its divisors is an integer number (30282623280).

Almost surely, 2^823554020052 is an apocalyptic number.

It is an amenable number.

823554020052 is an abundant number, since it is smaller than the sum of its proper divisors (1356794856108).

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

823554020052 is a wasteful number, since it uses less digits than its factorization.

823554020052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3697813 (or 3697808 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 823554020052 in words is "eight hundred twenty-three billion, five hundred fifty-four million, twenty thousand, fifty-two".