28387860480 has 896 divisors, whose sum is σ = 122046796800. Its totient is φ = 6115295232.

The previous prime is 28387860437. The next prime is 28387860493. The reversal of 28387860480 is 8406878382.

28387860480 is a `hidden beast` number, since 2 + 8 + 3 + 87 + 86 + 0 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (896).

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 63 ways as a sum of consecutive naturals, for example, 147087264 + ... + 147087456.

Almost surely, 2^28387860480 is an apocalyptic number.

28387860480 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 28387860480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61023398400).

28387860480 is an abundant number, since it is smaller than the sum of its proper divisors (93658936320).

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

28387860480 is a wasteful number, since it uses less digits than its factorization.

28387860480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 28387860480 in words is "twenty-eight billion, three hundred eighty-seven million, eight hundred sixty thousand, four hundred eighty".