818101139811 has 4 divisors (see below), whose sum is σ = 1090801519752. Its totient is φ = 545400759872.

The previous prime is 818101139797. The next prime is 818101139827. The reversal of 818101139811 is 118931101818.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 818101139811 - 2¹³ = 818101131619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (818101139111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136350189966 + ... + 136350189971.

It is an arithmetic number, because the mean of its divisors is an integer number (272700379938).

Almost surely, 2^818101139811 is an apocalyptic number.

818101139811 is a deficient number, since it is larger than the sum of its proper divisors (272700379941).

818101139811 is a wasteful number, since it uses less digits than its factorization.

818101139811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272700379940.

The product of its (nonzero) digits is 13824, while the sum is 42.

The spelling of 818101139811 in words is "eight hundred eighteen billion, one hundred one million, one hundred thirty-nine thousand, eight hundred eleven".