28744848380 has 24 divisors (see below), whose sum is σ = 61387305840. Its totient is φ = 11303058560.

The previous prime is 28744848373. The next prime is 28744848449. The reversal of 28744848380 is 8384844782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12178841 + ... + 12181200.

It is an arithmetic number, because the mean of its divisors is an integer number (2557804410).

Almost surely, 2^28744848380 is an apocalyptic number.

28744848380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28744848380 is an abundant number, since it is smaller than the sum of its proper divisors (32642457460).

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

28744848380 is a wasteful number, since it uses less digits than its factorization.

28744848380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24360109 (or 24360107 counting only the distinct ones).

The product of its (nonzero) digits is 11010048, while the sum is 56.

The spelling of 28744848380 in words is "twenty-eight billion, seven hundred forty-four million, eight hundred forty-eight thousand, three hundred eighty".