28703481268 has 144 divisors (see below), whose sum is σ = 65718172800. Its totient is φ = 10839225600.

The previous prime is 28703481263. The next prime is 28703481299. The reversal of 28703481268 is 86218430782.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28703481263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27839913 + ... + 27840943.

It is an arithmetic number, because the mean of its divisors is an integer number (456376200).

Almost surely, 2^28703481268 is an apocalyptic number.

28703481268 is a gapful number since it is divisible by the number (28) 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 28703481268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32859086400).

28703481268 is an abundant number, since it is smaller than the sum of its proper divisors (37014691532).

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

28703481268 is a wasteful number, since it uses less digits than its factorization.

28703481268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446 (or 1437 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The spelling of 28703481268 in words is "twenty-eight billion, seven hundred three million, four hundred eighty-one thousand, two hundred sixty-eight".