28875162113280 has 2160 divisors, whose sum is σ = 127746067147776. Its totient is φ = 6188073615360.

The previous prime is 28875162113267. The next prime is 28875162113351. The reversal of 28875162113280 is 8231126157882.

It is a happy number.

28875162113280 is a `hidden beast` number, since 2 + 8 + 8 + 7 + 5 + 1 + 621 + 1 + 3 + 2 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2160).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 31696116025 + ... + 31696116935.

Almost surely, 2^{28875162113280} is an apocalyptic number.

28875162113280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28875162113280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63873033573888).

28875162113280 is an abundant number, since it is smaller than the sum of its proper divisors (98870905034496).

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

28875162113280 is a wasteful number, since it uses less digits than its factorization.

28875162113280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 28875162113280 in words is "twenty-eight trillion, eight hundred seventy-five billion, one hundred sixty-two million, one hundred thirteen thousand, two hundred eighty".