183938493020 has 24 divisors (see below), whose sum is σ = 386279026224. Its totient is φ = 73573837056.

The previous prime is 183938493019. The next prime is 183938493041. The reversal of 183938493020 is 20394839381.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 183938493020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1539764 + ... + 1654916.

It is an arithmetic number, because the mean of its divisors is an integer number (16094959426).

Almost surely, 2^183938493020 is an apocalyptic number.

183938493020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

183938493020 is an abundant number, since it is smaller than the sum of its proper divisors (202340533204).

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

183938493020 is a wasteful number, since it uses less digits than its factorization.

183938493020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195029 (or 195027 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 183938493020 in words is "one hundred eighty-three billion, nine hundred thirty-eight million, four hundred ninety-three thousand, twenty".