818021710252 has 12 divisors (see below), whose sum is σ = 1431957453696. Its totient is φ = 408891009200.

The previous prime is 818021710241. The next prime is 818021710267. The reversal of 818021710252 is 252017120818.

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, 29946124 + ... + 29973427.

It is an arithmetic number, because the mean of its divisors is an integer number (119329787808).

Almost surely, 2^818021710252 is an apocalyptic number.

It is an amenable number.

818021710252 is a deficient number, since it is larger than the sum of its proper divisors (613935743444).

818021710252 is a wasteful number, since it uses less digits than its factorization.

818021710252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59922968 (or 59922966 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 37.

The spelling of 818021710252 in words is "eight hundred eighteen billion, twenty-one million, seven hundred ten thousand, two hundred fifty-two".