88888880111111 has 4 divisors (see below), whose sum is σ = 90014055808800. Its totient is φ = 87763704413424.

The previous prime is 88888880111077. The next prime is 88888880111123. The reversal of 88888880111111 is 11111108888888.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88888880111111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88888880111191) 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, 562587848726 + ... + 562587848883.

It is an arithmetic number, because the mean of its divisors is an integer number (22503513952200).

Almost surely, 2^{88888880111111} is an apocalyptic number.

88888880111111 is a deficient number, since it is larger than the sum of its proper divisors (1125175697689).

88888880111111 is a wasteful number, since it uses less digits than its factorization.

88888880111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125175697688.

The product of its (nonzero) digits is 2097152, while the sum is 62.

Adding to 88888880111111 its reverse (11111108888888), we get a palindrome (99999988999999).

The spelling of 88888880111111 in words is "eighty-eight trillion, eight hundred eighty-eight billion, eight hundred eighty million, one hundred eleven thousand, one hundred eleven".