27538878973 has 8 divisors (see below), whose sum is σ = 27570134592. Its totient is φ = 27507644736.

The previous prime is 27538878929. The next prime is 27538879031. The reversal of 27538878973 is 37987883572.

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 27538878973 - 2²¹ = 27536781821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27538878899 and 27538878908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27538858973) 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, 4183861 + ... + 4190437.

It is an arithmetic number, because the mean of its divisors is an integer number (3446266824).

Almost surely, 2^27538878973 is an apocalyptic number.

It is an amenable number.

27538878973 is a deficient number, since it is larger than the sum of its proper divisors (31255619).

27538878973 is a wasteful number, since it uses less digits than its factorization.

27538878973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10691.

The product of its digits is 142248960, while the sum is 67.

The spelling of 27538878973 in words is "twenty-seven billion, five hundred thirty-eight million, eight hundred seventy-eight thousand, nine hundred seventy-three".