405204542245 has 16 divisors (see below), whose sum is σ = 512977320000. Its totient is φ = 306418387968.

The previous prime is 405204542179. The next prime is 405204542257. The reversal of 405204542245 is 542245402504.

It is a cyclic number.

It is not a de Polignac number, because 405204542245 - 2¹¹ = 405204540197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4707135 + ... + 4792444.

It is an arithmetic number, because the mean of its divisors is an integer number (32061082500).

Almost surely, 2^405204542245 is an apocalyptic number.

It is an amenable number.

405204542245 is a deficient number, since it is larger than the sum of its proper divisors (107772777755).

405204542245 is a wasteful number, since it uses less digits than its factorization.

405204542245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9500052.

The product of its (nonzero) digits is 256000, while the sum is 37.

Adding to 405204542245 its reverse (542245402504), we get a palindrome (947449944749).

The spelling of 405204542245 in words is "four hundred five billion, two hundred four million, five hundred forty-two thousand, two hundred forty-five".