6898128949972 has 24 divisors (see below), whose sum is σ = 13000405838336. Its totient is φ = 3183730787808.

The previous prime is 6898128949951. The next prime is 6898128949997. The reversal of 6898128949972 is 2799498218986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9774433 + ... + 10456375.

Almost surely, 2^{6898128949972} is an apocalyptic number.

It is an amenable number.

6898128949972 is a deficient number, since it is larger than the sum of its proper divisors (6102276888364).

6898128949972 is a wasteful number, since it uses less digits than its factorization.

6898128949972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876487 (or 876485 counting only the distinct ones).

The product of its digits is 2257403904, while the sum is 82.

The spelling of 6898128949972 in words is "six trillion, eight hundred ninety-eight billion, one hundred twenty-eight million, nine hundred forty-nine thousand, nine hundred seventy-two".