27449047745 has 16 divisors (see below), whose sum is σ = 37651048320. Its totient is φ = 18818884224.

The previous prime is 27449047669. The next prime is 27449047793. The reversal of 27449047745 is 54774094472.

It is not a de Polignac number, because 27449047745 - 2²⁰ = 27447999169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141101 + ... + 273509.

It is an arithmetic number, because the mean of its divisors is an integer number (2353190520).

Almost surely, 2^27449047745 is an apocalyptic number.

It is an amenable number.

27449047745 is a deficient number, since it is larger than the sum of its proper divisors (10202000575).

27449047745 is a wasteful number, since it uses less digits than its factorization.

27449047745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138344.

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 27449047745 in words is "twenty-seven billion, four hundred forty-nine million, forty-seven thousand, seven hundred forty-five".