28007487468 has 36 divisors (see below), whose sum is σ = 70903870128. Its totient is φ = 9321697440.

The previous prime is 28007487421. The next prime is 28007487493. The reversal of 28007487468 is 86478470082.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564696 + ... + 612287.

It is an arithmetic number, because the mean of its divisors is an integer number (1969551948).

Almost surely, 2^28007487468 is an apocalyptic number.

It is an amenable number.

28007487468 is an abundant number, since it is smaller than the sum of its proper divisors (42896382660).

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

28007487468 is a wasteful number, since it uses less digits than its factorization.

28007487468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177654 (or 1177649 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 54.

The spelling of 28007487468 in words is "twenty-eight billion, seven million, four hundred eighty-seven thousand, four hundred sixty-eight".