28038447360 has 864 divisors, whose sum is σ = 122887634688. Its totient is φ = 5733089280.

The previous prime is 28038447317. The next prime is 28038447373. The reversal of 28038447360 is 6374483082.

28038447360 is a `hidden beast` number, since 280 + 3 + 8 + 4 + 4 + 7 + 360 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64753704 + ... + 64754136.

Almost surely, 2^28038447360 is an apocalyptic number.

28038447360 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 28038447360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61443817344).

28038447360 is an abundant number, since it is smaller than the sum of its proper divisors (94849187328).

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

28038447360 is a wasteful number, since it uses less digits than its factorization.

28038447360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 28038447360 in words is "twenty-eight billion, thirty-eight million, four hundred forty-seven thousand, three hundred sixty".