27145183438 has 8 divisors (see below), whose sum is σ = 40719402432. Its totient is φ = 13572049296.

The previous prime is 27145183433. The next prime is 27145183489. The reversal of 27145183438 is 83438154172.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27145183433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205470 + ... + 310657.

It is an arithmetic number, because the mean of its divisors is an integer number (5089925304).

Almost surely, 2^27145183438 is an apocalyptic number.

27145183438 is a deficient number, since it is larger than the sum of its proper divisors (13574218994).

27145183438 is a wasteful number, since it uses less digits than its factorization.

27145183438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542426.

The product of its digits is 645120, while the sum is 46.

The spelling of 27145183438 in words is "twenty-seven billion, one hundred forty-five million, one hundred eighty-three thousand, four hundred thirty-eight".