28080185464 has 32 divisors (see below), whose sum is σ = 52807629600. Its totient is φ = 13998199680.

The previous prime is 28080185461. The next prime is 28080185501. The reversal of 28080185464 is 46458108082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28080185461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9624934 + ... + 9627850.

It is an arithmetic number, because the mean of its divisors is an integer number (1650238425).

Almost surely, 2^28080185464 is an apocalyptic number.

It is an amenable number.

28080185464 is a deficient number, since it is larger than the sum of its proper divisors (24727444136).

28080185464 is a wasteful number, since it uses less digits than its factorization.

28080185464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6103 (or 6099 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 46.

The spelling of 28080185464 in words is "twenty-eight billion, eighty million, one hundred eighty-five thousand, four hundred sixty-four".