28874287460 has 24 divisors (see below), whose sum is σ = 63827373120. Its totient is φ = 10941835104.

The previous prime is 28874287457. The next prime is 28874287489. The reversal of 28874287460 is 6478247882.

It is a junction number, because it is equal to n+sod(n) for n = 28874287396 and 28874287405.

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, 37992104 + ... + 37992863.

It is an arithmetic number, because the mean of its divisors is an integer number (2659473880).

Almost surely, 2^28874287460 is an apocalyptic number.

28874287460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28874287460 is an abundant number, since it is smaller than the sum of its proper divisors (34953085660).

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

28874287460 is a wasteful number, since it uses less digits than its factorization.

28874287460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75984995 (or 75984993 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 56.

The spelling of 28874287460 in words is "twenty-eight billion, eight hundred seventy-four million, two hundred eighty-seven thousand, four hundred sixty".