888888798845 has 18 divisors (see below), whose sum is σ = 1089965963646. Its totient is φ = 695903435760.

The previous prime is 888888798823. The next prime is 888888798869. The reversal of 888888798845 is 548897888888.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 711111039076 + 177777759769 = 843274^2 + 421637^2 .

It is not a de Polignac number, because 888888798845 - 2¹⁶ = 888888733309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 99080210 + ... + 99089180.

It is an arithmetic number, because the mean of its divisors is an integer number (60553664647).

Almost surely, 2^888888798845 is an apocalyptic number.

It is an amenable number.

888888798845 is a deficient number, since it is larger than the sum of its proper divisors (201077164801).

888888798845 is an frugal number, since it uses more digits than its factorization.

888888798845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18041 (or 9023 counting only the distinct ones).

The product of its digits is 21139292160, while the sum is 89.

The spelling of 888888798845 in words is "eight hundred eighty-eight billion, eight hundred eighty-eight million, seven hundred ninety-eight thousand, eight hundred forty-five".