888989115402 has 24 divisors (see below), whose sum is σ = 1926160459236. Its totient is φ = 296327031936.

The previous prime is 888989115379. The next prime is 888989115403. The reversal of 888989115402 is 204511989888.

888989115402 is a `hidden beast` number, since 8 + 8 + 8 + 9 + 89 + 1 + 1 + 540 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 837867453201 + 51121662201 = 915351^2 + 226101^2 .

It is a super-4 number, since 4×888989115402⁴ (a number of 49 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 888989115402.

It is not an unprimeable number, because it can be changed into a prime (888989115403) 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, 3613708 + ... + 3851864.

Almost surely, 2^888989115402 is an apocalyptic number.

888989115402 is an abundant number, since it is smaller than the sum of its proper divisors (1037171343834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

888989115402 is a wasteful number, since it uses less digits than its factorization.

888989115402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445542 (or 445539 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 63.

The spelling of 888989115402 in words is "eight hundred eighty-eight billion, nine hundred eighty-nine million, one hundred fifteen thousand, four hundred two".