18800000881 has 4 divisors (see below), whose sum is σ = 18948032512. Its totient is φ = 18651969252.

The previous prime is 18800000873. The next prime is 18800000899.

18800000881 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18800000881 - 2³ = 18800000873 is a prime.

It is a super-2 number, since 2×18800000881² (a number of 21 digits) contains 22 as substring.

18800000881 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18800000861) 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, 74015625 + ... + 74015878.

It is an arithmetic number, because the mean of its divisors is an integer number (4737008128).

Almost surely, 2^18800000881 is an apocalyptic number.

It is an amenable number.

18800000881 is a deficient number, since it is larger than the sum of its proper divisors (148031631).

18800000881 is a wasteful number, since it uses less digits than its factorization.

18800000881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148031630.

The product of its (nonzero) digits is 4096, while the sum is 34.

It can be divided in two parts, 18800000 and 881, that added together give a palindrome (18800881).

The spelling of 18800000881 in words is "eighteen billion, eight hundred million, eight hundred eighty-one", and thus it is an aban number.