405469660027 has 16 divisors (see below), whose sum is σ = 413120246112. Its totient is φ = 397852427520.

The previous prime is 405469659953. The next prime is 405469660039. The reversal of 405469660027 is 720066964504.

It is a cyclic number.

It is not a de Polignac number, because 405469660027 - 2¹⁵ = 405469627259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405469660067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74848623 + ... + 74854039.

It is an arithmetic number, because the mean of its divisors is an integer number (25820015382).

Almost surely, 2^405469660027 is an apocalyptic number.

405469660027 is a deficient number, since it is larger than the sum of its proper divisors (7650586085).

405469660027 is a wasteful number, since it uses less digits than its factorization.

405469660027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8238.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 405469660027 in words is "four hundred five billion, four hundred sixty-nine million, six hundred sixty thousand, twenty-seven".