28453148024920 has 128 divisors (see below), whose sum is σ = 65975341985280. Its totient is φ = 11037058560000.

The previous prime is 28453148024911. The next prime is 28453148024921. The reversal of 28453148024920 is 2942084135482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28453148024921) 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, 241682070 + ... + 241799770.

It is an arithmetic number, because the mean of its divisors is an integer number (515432359260).

Almost surely, 2^{28453148024920} is an apocalyptic number.

28453148024920 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 28453148024920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32987670992640).

28453148024920 is an abundant number, since it is smaller than the sum of its proper divisors (37522193960360).

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

28453148024920 is a wasteful number, since it uses less digits than its factorization.

28453148024920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118637 (or 118633 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 28453148024920 in words is "twenty-eight trillion, four hundred fifty-three billion, one hundred forty-eight million, twenty-four thousand, nine hundred twenty".