877638410423 has 4 divisors (see below), whose sum is σ = 894197625768. Its totient is φ = 861079195080.

The previous prime is 877638410417. The next prime is 877638410431. The reversal of 877638410423 is 324014836778.

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 877638410423 - 2²⁰ = 877637361847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 16559215291 = 877638410423 / (8 + 7 + 7 + 6 + 3 + 8 + 4 + 1 + 0 + 4 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (877638410723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8279607593 + ... + 8279607698.

It is an arithmetic number, because the mean of its divisors is an integer number (223549406442).

Almost surely, 2^877638410423 is an apocalyptic number.

877638410423 is a deficient number, since it is larger than the sum of its proper divisors (16559215345).

877638410423 is a wasteful number, since it uses less digits than its factorization.

877638410423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16559215344.

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 877638410423 in words is "eight hundred seventy-seven billion, six hundred thirty-eight million, four hundred ten thousand, four hundred twenty-three".