28771476480 has 352 divisors, whose sum is σ = 106706016000. Its totient is φ = 7338000384.

The previous prime is 28771476479. The next prime is 28771476499. The reversal of 28771476480 is 8467417782.

28771476480 is a `hidden beast` number, since 2 + 87 + 7 + 14 + 76 + 480 = 666.

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 31 ways as a sum of consecutive naturals, for example, 3174996 + ... + 3184044.

Almost surely, 2^28771476480 is an apocalyptic number.

28771476480 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 28771476480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53353008000).

28771476480 is an abundant number, since it is smaller than the sum of its proper divisors (77934539520).

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

28771476480 is a wasteful number, since it uses less digits than its factorization.

28771476480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9106 (or 9082 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 54.

The spelling of 28771476480 in words is "twenty-eight billion, seven hundred seventy-one million, four hundred seventy-six thousand, four hundred eighty".