27680370528 has 24 divisors (see below), whose sum is σ = 72660972888. Its totient is φ = 9226790144.

The previous prime is 27680370463. The next prime is 27680370539. The reversal of 27680370528 is 82507308672.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144168501 + ... + 144168692.

It is an arithmetic number, because the mean of its divisors is an integer number (3027540537).

Almost surely, 2^27680370528 is an apocalyptic number.

It is an amenable number.

27680370528 is an abundant number, since it is smaller than the sum of its proper divisors (44980602360).

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

27680370528 is a wasteful number, since it uses less digits than its factorization.

27680370528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288337206 (or 288337198 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 27680370528 in words is "twenty-seven billion, six hundred eighty million, three hundred seventy thousand, five hundred twenty-eight".