404620661212 has 6 divisors (see below), whose sum is σ = 708086157128. Its totient is φ = 202310330604.

The previous prime is 404620661191. The next prime is 404620661213. The reversal of 404620661212 is 212166026404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404620661213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50577582648 + ... + 50577582655.

Almost surely, 2^404620661212 is an apocalyptic number.

It is an amenable number.

404620661212 is a deficient number, since it is larger than the sum of its proper divisors (303465495916).

404620661212 is a wasteful number, since it uses less digits than its factorization.

404620661212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101155165307 (or 101155165305 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 404620661212 its reverse (212166026404), we get a palindrome (616786687616).

The spelling of 404620661212 in words is "four hundred four billion, six hundred twenty million, six hundred sixty-one thousand, two hundred twelve".