218027261505904 has 20 divisors (see below), whose sum is σ = 422758098972160. Its totient is φ = 108928397255040.

The previous prime is 218027261505883. The next prime is 218027261505917. The reversal of 218027261505904 is 409505162720812.

It is a happy number.

218027261505904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5327072517 + ... + 5327113444.

It is an arithmetic number, because the mean of its divisors is an integer number (21137904948608).

Almost surely, 2^{218027261505904} is an apocalyptic number.

It is an amenable number.

218027261505904 is a deficient number, since it is larger than the sum of its proper divisors (204730837466256).

218027261505904 is a wasteful number, since it uses less digits than its factorization.

218027261505904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10654187248 (or 10654187242 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 218027261505904 in words is "two hundred eighteen trillion, twenty-seven billion, two hundred sixty-one million, five hundred five thousand, nine hundred four".