218232142877 has 8 divisors (see below), whose sum is σ = 249420528192. Its totient is φ = 187046848800.

The previous prime is 218232142873. The next prime is 218232142889. The reversal of 218232142877 is 778241232812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 218232142877 - 2² = 218232142873 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 (218232142873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619499 + ... + 905672.

It is an arithmetic number, because the mean of its divisors is an integer number (31177566024).

Almost surely, 2^218232142877 is an apocalyptic number.

It is an amenable number.

218232142877 is a deficient number, since it is larger than the sum of its proper divisors (31188385315).

218232142877 is a wasteful number, since it uses less digits than its factorization.

218232142877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545619.

The product of its digits is 602112, while the sum is 47.

The spelling of 218232142877 in words is "two hundred eighteen billion, two hundred thirty-two million, one hundred forty-two thousand, eight hundred seventy-seven".