183960797820 has 48 divisors (see below), whose sum is σ = 515835777408. Its totient is φ = 48985208640.

The previous prime is 183960797809. The next prime is 183960797821. The reversal of 183960797820 is 28797069381.

183960797820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183960797821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2177074 + ... + 2259993.

It is an arithmetic number, because the mean of its divisors is an integer number (10746578696).

Almost surely, 2^183960797820 is an apocalyptic number.

183960797820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

183960797820 is an abundant number, since it is smaller than the sum of its proper divisors (331874979588).

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

183960797820 is a wasteful number, since it uses less digits than its factorization.

183960797820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4437770 (or 4437768 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 183960797820 in words is "one hundred eighty-three billion, nine hundred sixty million, seven hundred ninety-seven thousand, eight hundred twenty".