405212361100 has 18 divisors (see below), whose sum is σ = 879310823804. Its totient is φ = 162084944400.

The previous prime is 405212361077. The next prime is 405212361133. The reversal of 405212361100 is 1163212504.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2026061706 + ... + 2026061905.

Almost surely, 2^405212361100 is an apocalyptic number.

It is an amenable number.

405212361100 is an abundant number, since it is smaller than the sum of its proper divisors (474098462704).

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

405212361100 is a wasteful number, since it uses less digits than its factorization.

405212361100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4052123625 (or 4052123618 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 405212361100 its reverse (1163212504), we get a palindrome (406375573604).

The spelling of 405212361100 in words is "four hundred five billion, two hundred twelve million, three hundred sixty-one thousand, one hundred".