6414128021988 has 72 divisors (see below), whose sum is σ = 16737549943296. Its totient is φ = 2068944508800.

The previous prime is 6414128021969. The next prime is 6414128022017. The reversal of 6414128021988 is 8891208214146.

6414128021988 is a `hidden beast` number, since 6 + 4 + 1 + 412 + 8 + 0 + 219 + 8 + 8 = 666.

It is a super-2 number, since 2×6414128021988² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18603648 + ... + 18945288.

Almost surely, 2^{6414128021988} is an apocalyptic number.

It is an amenable number.

6414128021988 is an abundant number, since it is smaller than the sum of its proper divisors (10323421921308).

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

6414128021988 is a wasteful number, since it uses less digits than its factorization.

6414128021988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358505 (or 358500 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The spelling of 6414128021988 in words is "six trillion, four hundred fourteen billion, one hundred twenty-eight million, twenty-one thousand, nine hundred eighty-eight".