88888888444421 has 12 divisors (see below), whose sum is σ = 96736145767200. Its totient is φ = 81638963611920.

The previous prime is 88888888444409. The next prime is 88888888444523. The reversal of 88888888444421 is 12444488888888.

It is not a de Polignac number, because 88888888444421 - 2³⁰ = 88887814702597 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 88888888444421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88888888444921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1321498415 + ... + 1321565676.

It is an arithmetic number, because the mean of its divisors is an integer number (8061345480600).

Almost surely, 2^{88888888444421} is an apocalyptic number.

It is an amenable number.

88888888444421 is a deficient number, since it is larger than the sum of its proper divisors (7847257322779).

88888888444421 is a wasteful number, since it uses less digits than its factorization.

88888888444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643064316 (or 2643064303 counting only the distinct ones).

The product of its digits is 8589934592, while the sum is 83.

The spelling of 88888888444421 in words is "eighty-eight trillion, eight hundred eighty-eight billion, eight hundred eighty-eight million, four hundred forty-four thousand, four hundred twenty-one".