181404474212 has 24 divisors (see below), whose sum is σ = 341936667072. Its totient is φ = 83710692000.

The previous prime is 181404474197. The next prime is 181404474241. The reversal of 181404474212 is 212474404181.

It is a happy 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, 6137 + ... + 602367.

It is an arithmetic number, because the mean of its divisors is an integer number (14247361128).

Almost surely, 2^181404474212 is an apocalyptic number.

It is an amenable number.

181404474212 is a deficient number, since it is larger than the sum of its proper divisors (160532192860).

181404474212 is a wasteful number, since it uses less digits than its factorization.

181404474212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602099 (or 602097 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 38.

Adding to 181404474212 its reverse (212474404181), we get a palindrome (393878878393).

The spelling of 181404474212 in words is "one hundred eighty-one billion, four hundred four million, four hundred seventy-four thousand, two hundred twelve".