218851002713 has 32 divisors (see below), whose sum is σ = 265230336000. Its totient is φ = 176401406016.

The previous prime is 218851002709. The next prime is 218851002757. The reversal of 218851002713 is 317200158812.

It is a cyclic number.

It is not a de Polignac number, because 218851002713 - 2² = 218851002709 is a prime.

It is a super-2 number, since 2×218851002713² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (218851002313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10340420 + ... + 10361562.

It is an arithmetic number, because the mean of its divisors is an integer number (8288448000).

Almost surely, 2^218851002713 is an apocalyptic number.

It is an amenable number.

218851002713 is a deficient number, since it is larger than the sum of its proper divisors (46379333287).

218851002713 is a wasteful number, since it uses less digits than its factorization.

218851002713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21741.

The product of its (nonzero) digits is 26880, while the sum is 38.

The spelling of 218851002713 in words is "two hundred eighteen billion, eight hundred fifty-one million, two thousand, seven hundred thirteen".