183905472212 has 48 divisors (see below), whose sum is σ = 406744904832. Its totient is φ = 70669946880.

The previous prime is 183905472193. The next prime is 183905472241. The reversal of 183905472212 is 212274509381.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4067213 + ... + 4112180.

It is an arithmetic number, because the mean of its divisors is an integer number (8473852184).

Almost surely, 2^183905472212 is an apocalyptic number.

It is an amenable number.

183905472212 is an abundant number, since it is smaller than the sum of its proper divisors (222839432620).

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

183905472212 is a wasteful number, since it uses less digits than its factorization.

183905472212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8179488 (or 8179486 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 183905472212 in words is "one hundred eighty-three billion, nine hundred five million, four hundred seventy-two thousand, two hundred twelve".