218818237982 has 16 divisors (see below), whose sum is σ = 343468386720. Its totient is φ = 104355727872.

The previous prime is 218818237951. The next prime is 218818238047. The reversal of 218818237982 is 289732818812.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6721607 + ... + 6754082.

It is an arithmetic number, because the mean of its divisors is an integer number (21466774170).

Almost surely, 2^218818237982 is an apocalyptic number.

218818237982 is a deficient number, since it is larger than the sum of its proper divisors (124650148738).

218818237982 is a wasteful number, since it uses less digits than its factorization.

218818237982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13476067.

The product of its digits is 6193152, while the sum is 59.

The spelling of 218818237982 in words is "two hundred eighteen billion, eight hundred eighteen million, two hundred thirty-seven thousand, nine hundred eighty-two".