19980127698288 has 80 divisors (see below), whose sum is σ = 52075011747840. Its totient is φ = 6600836164608.

The previous prime is 19980127698277. The next prime is 19980127698301. The reversal of 19980127698288 is 88289672108991.

It is a Smith number, since the sum of its digits (78) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4278423 + ... + 7633161.

It is an arithmetic number, because the mean of its divisors is an integer number (650937646848).

Almost surely, 2^{19980127698288} is an apocalyptic number.

It is an amenable number.

19980127698288 is an abundant number, since it is smaller than the sum of its proper divisors (32094884049552).

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

19980127698288 is a wasteful number, since it uses less digits than its factorization.

19980127698288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355854 (or 3355848 counting only the distinct ones).

The product of its (nonzero) digits is 501645312, while the sum is 78.

The spelling of 19980127698288 in words is "nineteen trillion, nine hundred eighty billion, one hundred twenty-seven million, six hundred ninety-eight thousand, two hundred eighty-eight".