28374644480 has 576 divisors, whose sum is σ = 87820443648. Its totient is φ = 8546549760.

The previous prime is 28374644453. The next prime is 28374644491. The reversal of 28374644480 is 8444647382.

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, 388693724 + ... + 388693796.

It is an arithmetic number, because the mean of its divisors is an integer number (152466048).

Almost surely, 2^28374644480 is an apocalyptic number.

28374644480 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 28374644480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43910221824).

28374644480 is an abundant number, since it is smaller than the sum of its proper divisors (59445799168).

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

28374644480 is a wasteful number, since it uses less digits than its factorization.

28374644480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 50.

The spelling of 28374644480 in words is "twenty-eight billion, three hundred seventy-four million, six hundred forty-four thousand, four hundred eighty".