27980479572 has 12 divisors (see below), whose sum is σ = 65287785696. Its totient is φ = 9326826520.

The previous prime is 27980479559. The next prime is 27980479609. The reversal of 27980479572 is 27597408972.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1165853304 + ... + 1165853327.

It is an arithmetic number, because the mean of its divisors is an integer number (5440648808).

Almost surely, 2^27980479572 is an apocalyptic number.

It is an amenable number.

27980479572 is an abundant number, since it is smaller than the sum of its proper divisors (37307306124).

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

27980479572 is a wasteful number, since it uses less digits than its factorization.

27980479572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331706638 (or 2331706636 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 27980479572 in words is "twenty-seven billion, nine hundred eighty million, four hundred seventy-nine thousand, five hundred seventy-two".