18811034771 has 8 divisors (see below), whose sum is σ = 19921876224. Its totient is φ = 17724607560.

The previous prime is 18811034743. The next prime is 18811034779. The reversal of 18811034771 is 17743011881.

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 18811034771 - 2³⁴ = 1631165587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18811034779) 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, 6101975 + ... + 6105056.

It is an arithmetic number, because the mean of its divisors is an integer number (2490234528).

Almost surely, 2^18811034771 is an apocalyptic number.

18811034771 is a deficient number, since it is larger than the sum of its proper divisors (1110841453).

18811034771 is a wasteful number, since it uses less digits than its factorization.

18811034771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12207121.

The product of its (nonzero) digits is 37632, while the sum is 41.

The spelling of 18811034771 in words is "eighteen billion, eight hundred eleven million, thirty-four thousand, seven hundred seventy-one".