28269487360 has 36 divisors (see below), whose sum is σ = 67714259508. Its totient is φ = 11307794432.

The previous prime is 28269487333. The next prime is 28269487369. The reversal of 28269487360 is 6378496282.

It can be written as a sum of positive squares in 2 ways, for example, as 15932498176 + 12336989184 = 126224^2 + 111072^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28269487369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11041489 + ... + 11044048.

It is an arithmetic number, because the mean of its divisors is an integer number (1880951653).

Almost surely, 2^28269487360 is an apocalyptic number.

28269487360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28269487360 is an abundant number, since it is smaller than the sum of its proper divisors (39444772148).

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

28269487360 is an equidigital number, since it uses as much as digits as its factorization.

28269487360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22085558 (or 22085544 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 28269487360 in words is "twenty-eight billion, two hundred sixty-nine million, four hundred eighty-seven thousand, three hundred sixty".