218475331023 has 8 divisors (see below), whose sum is σ = 291772567728. Its totient is φ = 145414157504.

The previous prime is 218475330971. The next prime is 218475331043. The reversal of 218475331023 is 320133574812.

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

It is a cyclic number.

It is not a de Polignac number, because 218475331023 - 2⁸ = 218475330767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218475331043) 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, 59013636 + ... + 59017337.

It is an arithmetic number, because the mean of its divisors is an integer number (36471570966).

Almost surely, 2^218475331023 is an apocalyptic number.

218475331023 is a deficient number, since it is larger than the sum of its proper divisors (73297236705).

218475331023 is a wasteful number, since it uses less digits than its factorization.

218475331023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118031593.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 218475331023 in words is "two hundred eighteen billion, four hundred seventy-five million, three hundred thirty-one thousand, twenty-three".