3128641909488 has 60 divisors (see below), whose sum is σ = 8846118565648. Its totient is φ = 1032129285120.

The previous prime is 3128641909457. The next prime is 3128641909489. The reversal of 3128641909488 is 8849091468213.

3128641909488 is a `hidden beast` number, since 3 + 1 + 2 + 8 + 64 + 1 + 90 + 9 + 488 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128641909489) 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, 111979228 + ... + 112007163.

Almost surely, 2^{3128641909488} is an apocalyptic number.

It is an amenable number.

3128641909488 is an abundant number, since it is smaller than the sum of its proper divisors (5717476656160).

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

3128641909488 is a wasteful number, since it uses less digits than its factorization.

3128641909488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223986502 (or 223986493 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 3128641909488 in words is "three trillion, one hundred twenty-eight billion, six hundred forty-one million, nine hundred nine thousand, four hundred eighty-eight".