27672735761 has 4 divisors (see below), whose sum is σ = 30188439024. Its totient is φ = 25157032500.

The previous prime is 27672735719. The next prime is 27672735767. The reversal of 27672735761 is 16753727672.

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 not a de Polignac number, because 27672735761 - 2¹⁸ = 27672473617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27672735767) 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, 1257851615 + ... + 1257851636.

It is an arithmetic number, because the mean of its divisors is an integer number (7547109756).

Almost surely, 2^27672735761 is an apocalyptic number.

It is an amenable number.

27672735761 is a deficient number, since it is larger than the sum of its proper divisors (2515703263).

27672735761 is a wasteful number, since it uses less digits than its factorization.

27672735761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515703262.

The product of its digits is 5186160, while the sum is 53.

The spelling of 27672735761 in words is "twenty-seven billion, six hundred seventy-two million, seven hundred thirty-five thousand, seven hundred sixty-one".