2145828186888 has 64 divisors (see below), whose sum is σ = 5680350452160. Its totient is φ = 673175279616.

The previous prime is 2145828186881. The next prime is 2145828186889. The reversal of 2145828186888 is 8886818285412.

It is a super-3 number, since 3×2145828186888³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145828186881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12537295 + ... + 12707297.

It is an arithmetic number, because the mean of its divisors is an integer number (88755475815).

Almost surely, 2^{2145828186888} is an apocalyptic number.

It is an amenable number.

2145828186888 is an abundant number, since it is smaller than the sum of its proper divisors (3534522265272).

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

2145828186888 is a wasteful number, since it uses less digits than its factorization.

2145828186888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200966 (or 200962 counting only the distinct ones).

The product of its digits is 125829120, while the sum is 69.

The spelling of 2145828186888 in words is "two trillion, one hundred forty-five billion, eight hundred twenty-eight million, one hundred eighty-six thousand, eight hundred eighty-eight".