28476720288 has 480 divisors, whose sum is σ = 92500531200. Its totient is φ = 8559323136.

The previous prime is 28476720271. The next prime is 28476720301. The reversal of 28476720288 is 88202767482.

28476720288 is a `hidden beast` number, since 28 + 476 + 72 + 0 + 2 + 88 = 666.

It is a super-3 number, since 3×28476720288³ (a number of 32 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 181380306 + ... + 181380462.

It is an arithmetic number, because the mean of its divisors is an integer number (192709440).

Almost surely, 2^28476720288 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 28476720288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46250265600).

28476720288 is an abundant number, since it is smaller than the sum of its proper divisors (64023810912).

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

28476720288 is a wasteful number, since it uses less digits than its factorization.

28476720288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 54.

The spelling of 28476720288 in words is "twenty-eight billion, four hundred seventy-six million, seven hundred twenty thousand, two hundred eighty-eight".