27725344745 has 16 divisors (see below), whose sum is σ = 38028555648. Its totient is φ = 19009052160.

The previous prime is 27725344637. The next prime is 27725344753. The reversal of 27725344745 is 54744352772.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-27725344745 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27725344693 and 27725344702.

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, 223922 + ... + 324948.

It is an arithmetic number, because the mean of its divisors is an integer number (2376784728).

Almost surely, 2^27725344745 is an apocalyptic number.

It is an amenable number.

27725344745 is a deficient number, since it is larger than the sum of its proper divisors (10303210903).

27725344745 is a wasteful number, since it uses less digits than its factorization.

27725344745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108880.

The product of its digits is 6585600, while the sum is 50.

The spelling of 27725344745 in words is "twenty-seven billion, seven hundred twenty-five million, three hundred forty-four thousand, seven hundred forty-five".