863823374523 has 6 divisors (see below), whose sum is σ = 1247744874324. Its totient is φ = 575882249676.

The previous prime is 863823374521. The next prime is 863823374563. The reversal of 863823374523 is 325473328368.

863823374523 is a `hidden beast` number, since 8 + 6 + 3 + 82 + 3 + 37 + 4 + 523 = 666.

It is not a de Polignac number, because 863823374523 - 2¹ = 863823374521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 863823374523.

It is not an unprimeable number, because it can be changed into a prime (863823374521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47990187465 + ... + 47990187482.

It is an arithmetic number, because the mean of its divisors is an integer number (207957479054).

Almost surely, 2^863823374523 is an apocalyptic number.

863823374523 is a deficient number, since it is larger than the sum of its proper divisors (383921499801).

863823374523 is a wasteful number, since it uses less digits than its factorization.

863823374523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95980374953 (or 95980374950 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 54.

The spelling of 863823374523 in words is "eight hundred sixty-three billion, eight hundred twenty-three million, three hundred seventy-four thousand, five hundred twenty-three".