27980597377 has 8 divisors (see below), whose sum is σ = 28077964992. Its totient is φ = 27883270800.

The previous prime is 27980597341. The next prime is 27980597387. The reversal of 27980597377 is 77379508972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27980597377 - 2¹⁹ = 27980073089 is a prime.

It is a super-3 number, since 3×27980597377³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27980597387) 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, 2078127 + ... + 2091547.

It is an arithmetic number, because the mean of its divisors is an integer number (3509745624).

Almost surely, 2^27980597377 is an apocalyptic number.

It is an amenable number.

27980597377 is a deficient number, since it is larger than the sum of its proper divisors (97367615).

27980597377 is a wasteful number, since it uses less digits than its factorization.

27980597377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20519.

The product of its (nonzero) digits is 46675440, while the sum is 64.

The spelling of 27980597377 in words is "twenty-seven billion, nine hundred eighty million, five hundred ninety-seven thousand, three hundred seventy-seven".