218088823677 has 16 divisors (see below), whose sum is σ = 292902792000. Its totient is φ = 144333886464.

The previous prime is 218088823657. The next prime is 218088823699. The reversal of 218088823677 is 776328880812.

It is not a de Polignac number, because 218088823677 - 2¹⁶ = 218088758141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 218088823677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218088823657) 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 15 ways as a sum of consecutive naturals, for example, 8714899 + ... + 8739887.

It is an arithmetic number, because the mean of its divisors is an integer number (18306424500).

Almost surely, 2^218088823677 is an apocalyptic number.

It is an amenable number.

218088823677 is a deficient number, since it is larger than the sum of its proper divisors (74813968323).

218088823677 is a wasteful number, since it uses less digits than its factorization.

218088823677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46060.

The product of its (nonzero) digits is 14450688, while the sum is 60.

The spelling of 218088823677 in words is "two hundred eighteen billion, eighty-eight million, eight hundred twenty-three thousand, six hundred seventy-seven".