28007490960 has 80 divisors (see below), whose sum is σ = 96470254080. Its totient is φ = 7468663680.

The previous prime is 28007490923. The next prime is 28007490989. The reversal of 28007490960 is 6909470082.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6481056 + ... + 6485375.

It is an arithmetic number, because the mean of its divisors is an integer number (1205878176).

Almost surely, 2^28007490960 is an apocalyptic number.

28007490960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28007490960 is an abundant number, since it is smaller than the sum of its proper divisors (68462763120).

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

28007490960 is a wasteful number, since it uses less digits than its factorization.

28007490960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12966453 (or 12966441 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 28007490960 in words is "twenty-eight billion, seven million, four hundred ninety thousand, nine hundred sixty".