27145361005 has 8 divisors (see below), whose sum is σ = 37227923712. Its totient is φ = 18613961808.

The previous prime is 27145360987. The next prime is 27145361011. The reversal of 27145361005 is 50016354172.

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 27145361005 - 2¹⁵ = 27145328237 is a prime.

It is a super-2 number, since 2×27145361005² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387790837 + ... + 387790906.

It is an arithmetic number, because the mean of its divisors is an integer number (4653490464).

Almost surely, 2^27145361005 is an apocalyptic number.

It is an amenable number.

27145361005 is a deficient number, since it is larger than the sum of its proper divisors (10082562707).

27145361005 is an equidigital number, since it uses as much as digits as its factorization.

27145361005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775581755.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 27145361005 in words is "twenty-seven billion, one hundred forty-five million, three hundred sixty-one thousand, five".