28871619017180 has 24 divisors (see below), whose sum is σ = 60712002120672. Its totient is φ = 11533104333632.

The previous prime is 28871619017173. The next prime is 28871619017183. The reversal of 28871619017180 is 8171091617882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28871619017183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971439347 + ... + 971469066.

It is an arithmetic number, because the mean of its divisors is an integer number (2529666755028).

Almost surely, 2^{28871619017180} is an apocalyptic number.

28871619017180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28871619017180 is an abundant number, since it is smaller than the sum of its proper divisors (31840383103492).

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

28871619017180 is a wasteful number, since it uses less digits than its factorization.

28871619017180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942909165 (or 1942909163 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 59.

The spelling of 28871619017180 in words is "twenty-eight trillion, eight hundred seventy-one billion, six hundred nineteen million, seventeen thousand, one hundred eighty".