27538878401 has 8 divisors (see below), whose sum is σ = 28810785024. Its totient is φ = 26295554080.

The previous prime is 27538878379. The next prime is 27538878431. The reversal of 27538878401 is 10487883572.

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 27538878401 - 2⁶ = 27538878337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27538878431) 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, 7143605 + ... + 7147458.

It is an arithmetic number, because the mean of its divisors is an integer number (3601348128).

Almost surely, 2^27538878401 is an apocalyptic number.

It is an amenable number.

27538878401 is a deficient number, since it is larger than the sum of its proper divisors (1271906623).

27538878401 is a wasteful number, since it uses less digits than its factorization.

27538878401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14291151.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 27538878401 in words is "twenty-seven billion, five hundred thirty-eight million, eight hundred seventy-eight thousand, four hundred one".