818866232041 has 48 divisors (see below), whose sum is σ = 1020916724800. Its totient is φ = 650619319680.

The previous prime is 818866231993. The next prime is 818866232077. The reversal of 818866232041 is 140232668818.

It is not a de Polignac number, because 818866232041 - 2⁷ = 818866231913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (818866232081) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59378575 + ... + 59392363.

Almost surely, 2^818866232041 is an apocalyptic number.

It is an amenable number.

818866232041 is a deficient number, since it is larger than the sum of its proper divisors (202050492759).

818866232041 is a wasteful number, since it uses less digits than its factorization.

818866232041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15830 (or 15819 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 818866232041 in words is "eight hundred eighteen billion, eight hundred sixty-six million, two hundred thirty-two thousand, forty-one".