8148388809689 has 16 divisors (see below), whose sum is σ = 8595210156480. Its totient is φ = 7703377577280.

The previous prime is 8148388809679. The next prime is 8148388809707. The reversal of 8148388809689 is 9869088838418.

It is a happy number.

It is not a de Polignac number, because 8148388809689 - 2¹² = 8148388805593 is a prime.

It is a super-3 number, since 3×8148388809689³ (a number of 40 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8148388809619) 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, 20527679 + ... + 20920859.

It is an arithmetic number, because the mean of its divisors is an integer number (537200634780).

Almost surely, 2^{8148388809689} is an apocalyptic number.

It is an amenable number.

8148388809689 is a deficient number, since it is larger than the sum of its proper divisors (446821346791).

8148388809689 is a wasteful number, since it uses less digits than its factorization.

8148388809689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395480.

The product of its (nonzero) digits is 1528823808, while the sum is 80.

The spelling of 8148388809689 in words is "eight trillion, one hundred forty-eight billion, three hundred eighty-eight million, eight hundred nine thousand, six hundred eighty-nine".