405535503545 has 32 divisors (see below), whose sum is σ = 515813868288. Its totient is φ = 305463045888.

The previous prime is 405535503533. The next prime is 405535503553. The reversal of 405535503545 is 545305535504.

It is a cyclic number.

It is not a de Polignac number, because 405535503545 - 2¹² = 405535499449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405535503496 and 405535503505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1826927 + ... + 2036843.

It is an arithmetic number, because the mean of its divisors is an integer number (16119183384).

Almost surely, 2^405535503545 is an apocalyptic number.

It is an amenable number.

405535503545 is a deficient number, since it is larger than the sum of its proper divisors (110278364743).

405535503545 is a wasteful number, since it uses less digits than its factorization.

405535503545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210209.

The product of its (nonzero) digits is 2250000, while the sum is 44.

The spelling of 405535503545 in words is "four hundred five billion, five hundred thirty-five million, five hundred three thousand, five hundred forty-five".