27012591345 has 8 divisors (see below), whose sum is σ = 43220146176. Its totient is φ = 14406715376.

The previous prime is 27012591323. The next prime is 27012591349. The reversal of 27012591345 is 54319521072.

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 27012591345 - 2⁵ = 27012591313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27012591349) 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, 900419697 + ... + 900419726.

It is an arithmetic number, because the mean of its divisors is an integer number (5402518272).

Almost surely, 2^27012591345 is an apocalyptic number.

It is an amenable number.

27012591345 is a deficient number, since it is larger than the sum of its proper divisors (16207554831).

27012591345 is a wasteful number, since it uses less digits than its factorization.

27012591345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800839431.

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 27012591345 in words is "twenty-seven billion, twelve million, five hundred ninety-one thousand, three hundred forty-five".