28874457460 has 48 divisors (see below), whose sum is σ = 62146990080. Its totient is φ = 11262332160.

The previous prime is 28874457401. The next prime is 28874457461. The reversal of 28874457460 is 6475447882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28874457461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1828117 + ... + 1843843.

It is an arithmetic number, because the mean of its divisors is an integer number (1294728960).

Almost surely, 2^28874457460 is an apocalyptic number.

28874457460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28874457460 is an abundant number, since it is smaller than the sum of its proper divisors (33272532620).

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

28874457460 is a wasteful number, since it uses less digits than its factorization.

28874457460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18016 (or 18014 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 55.

The spelling of 28874457460 in words is "twenty-eight billion, eight hundred seventy-four million, four hundred fifty-seven thousand, four hundred sixty".