28287379152 has 120 divisors (see below), whose sum is σ = 80011039680. Its totient is φ = 9328849920.

The previous prime is 28287379121. The next prime is 28287379181. The reversal of 28287379152 is 25197378282.

It is a congruent number.

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, 6770088 + ... + 6774264.

It is an arithmetic number, because the mean of its divisors is an integer number (666758664).

Almost surely, 2^28287379152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28287379152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40005519840).

28287379152 is an abundant number, since it is smaller than the sum of its proper divisors (51723660528).

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

28287379152 is a wasteful number, since it uses less digits than its factorization.

28287379152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681 (or 4672 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 28287379152 in words is "twenty-eight billion, two hundred eighty-seven million, three hundred seventy-nine thousand, one hundred fifty-two".