28748714784 has 48 divisors (see below), whose sum is σ = 75703517568. Its totient is φ = 9552664832.

The previous prime is 28748714779. The next prime is 28748714821. The reversal of 28748714784 is 48741784782.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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, 441912 + ... + 502775.

It is an arithmetic number, because the mean of its divisors is an integer number (1577156616).

Almost surely, 2^28748714784 is an apocalyptic number.

28748714784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28748714784 is an abundant number, since it is smaller than the sum of its proper divisors (46954802784).

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

28748714784 is a wasteful number, since it uses less digits than its factorization.

28748714784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945017 (or 945009 counting only the distinct ones).

The product of its digits is 22478848, while the sum is 60.

The spelling of 28748714784 in words is "twenty-eight billion, seven hundred forty-eight million, seven hundred fourteen thousand, seven hundred eighty-four".