27538878361 has 8 divisors (see below), whose sum is σ = 27608654304. Its totient is φ = 27469183200.

The previous prime is 27538878359. The next prime is 27538878371. The reversal of 27538878361 is 16387883572.

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 27538878361 - 2¹ = 27538878359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27538878296 and 27538878305.

It is not an unprimeable number, because it can be changed into a prime (27538878371) 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, 694086 + ... + 732688.

It is an arithmetic number, because the mean of its divisors is an integer number (3451081788).

Almost surely, 2^27538878361 is an apocalyptic number.

It is an amenable number.

27538878361 is a deficient number, since it is larger than the sum of its proper divisors (69775943).

27538878361 is a wasteful number, since it uses less digits than its factorization.

27538878361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40391.

The product of its digits is 13547520, while the sum is 58.

The spelling of 27538878361 in words is "twenty-seven billion, five hundred thirty-eight million, eight hundred seventy-eight thousand, three hundred sixty-one".