405232656563 has 4 divisors (see below), whose sum is σ = 463123036080. Its totient is φ = 347342277048.

The previous prime is 405232656559. The next prime is 405232656629. The reversal of 405232656563 is 365656232504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 405232656563 - 2² = 405232656559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405232656503) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28945189748 + ... + 28945189761.

It is an arithmetic number, because the mean of its divisors is an integer number (115780759020).

Almost surely, 2^405232656563 is an apocalyptic number.

405232656563 is a deficient number, since it is larger than the sum of its proper divisors (57890379517).

405232656563 is an equidigital number, since it uses as much as digits as its factorization.

405232656563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57890379516.

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 405232656563 in words is "four hundred five billion, two hundred thirty-two million, six hundred fifty-six thousand, five hundred sixty-three".