3128471489268 has 36 divisors (see below), whose sum is σ = 8324295484960. Its totient is φ = 987938364816.

The previous prime is 3128471489263. The next prime is 3128471489303. The reversal of 3128471489268 is 8629841748213.

It is a happy number.

3128471489268 is a `hidden beast` number, since 3 + 1 + 2 + 84 + 71 + 489 + 2 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128471489261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2286893680 + ... + 2286895047.

Almost surely, 2^{3128471489268} is an apocalyptic number.

3128471489268 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3128471489268 is an abundant number, since it is smaller than the sum of its proper divisors (5195823995692).

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

3128471489268 is a wasteful number, since it uses less digits than its factorization.

3128471489268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4573788756 (or 4573788751 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The spelling of 3128471489268 in words is "three trillion, one hundred twenty-eight billion, four hundred seventy-one million, four hundred eighty-nine thousand, two hundred sixty-eight".