28463867040 has 384 divisors, whose sum is σ = 108815228928. Its totient is φ = 6105415680.

The previous prime is 28463867017. The next prime is 28463867137. The reversal of 28463867040 is 4076836482.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31244185 + ... + 31245095.

It is an arithmetic number, because the mean of its divisors is an integer number (283372992).

Almost surely, 2^28463867040 is an apocalyptic number.

28463867040 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 28463867040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54407614464).

28463867040 is an abundant number, since it is smaller than the sum of its proper divisors (80351361888).

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

28463867040 is a wasteful number, since it uses less digits than its factorization.

28463867040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 28463867040 in words is "twenty-eight billion, four hundred sixty-three million, eight hundred sixty-seven thousand, forty".