27705737045 has 48 divisors (see below), whose sum is σ = 38960092800. Its totient is φ = 18858752640.

The previous prime is 27705737041. The next prime is 27705737057. The reversal of 27705737045 is 54073750772.

It is not a de Polignac number, because 27705737045 - 2² = 27705737041 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27705737041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23659310 + ... + 23660480.

It is an arithmetic number, because the mean of its divisors is an integer number (811668600).

Almost surely, 2^27705737045 is an apocalyptic number.

It is an amenable number.

27705737045 is a deficient number, since it is larger than the sum of its proper divisors (11254355755).

27705737045 is a wasteful number, since it uses less digits than its factorization.

27705737045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 1440600, while the sum is 47.

The spelling of 27705737045 in words is "twenty-seven billion, seven hundred five million, seven hundred thirty-seven thousand, forty-five".