27045495457 has 4 divisors (see below), whose sum is σ = 27071229616. Its totient is φ = 27019761300.

The previous prime is 27045495443. The next prime is 27045495467. The reversal of 27045495457 is 75459454072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27045495457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27045495427) 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, 12865503 + ... + 12867604.

It is an arithmetic number, because the mean of its divisors is an integer number (6767807404).

Almost surely, 2^27045495457 is an apocalyptic number.

It is an amenable number.

27045495457 is a deficient number, since it is larger than the sum of its proper divisors (25734159).

27045495457 is a wasteful number, since it uses less digits than its factorization.

27045495457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25734158.

The product of its (nonzero) digits is 7056000, while the sum is 52.

The spelling of 27045495457 in words is "twenty-seven billion, forty-five million, four hundred ninety-five thousand, four hundred fifty-seven".