823775624887463 has 4 divisors (see below), whose sum is σ = 823857437949960. Its totient is φ = 823693811824968.

The previous prime is 823775624887441. The next prime is 823775624887469. The reversal of 823775624887463 is 364788426577328.

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 823775624887463 - 2¹⁴ = 823775624871079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823775624887469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40906516145 + ... + 40906536282.

It is an arithmetic number, because the mean of its divisors is an integer number (205964359487490).

Almost surely, 2^{823775624887463} is an apocalyptic number.

823775624887463 is a deficient number, since it is larger than the sum of its proper divisors (81813062497).

823775624887463 is a wasteful number, since it uses less digits than its factorization.

823775624887463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81813062496.

The product of its digits is 18207866880, while the sum is 80.

The spelling of 823775624887463 in words is "eight hundred twenty-three trillion, seven hundred seventy-five billion, six hundred twenty-four million, eight hundred eighty-seven thousand, four hundred sixty-three".