28463485752 has 128 divisors (see below), whose sum is σ = 86225664000. Its totient is φ = 8647067520.

The previous prime is 28463485751. The next prime is 28463485759. The reversal of 28463485752 is 25758436482.

28463485752 is a `hidden beast` number, since 2 + 8 + 4 + 63 + 4 + 8 + 575 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28463485751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157677 + ... + 285987.

It is an arithmetic number, because the mean of its divisors is an integer number (673638000).

Almost surely, 2^28463485752 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 28463485752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43112832000).

28463485752 is an abundant number, since it is smaller than the sum of its proper divisors (57762178248).

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

28463485752 is a wasteful number, since it uses less digits than its factorization.

28463485752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128418 (or 128408 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 54.

The spelling of 28463485752 in words is "twenty-eight billion, four hundred sixty-three million, four hundred eighty-five thousand, seven hundred fifty-two".