12747575761 has 8 divisors (see below), whose sum is σ = 12812326848. Its totient is φ = 12682866000.

The previous prime is 12747575723. The next prime is 12747575767. The reversal of 12747575761 is 16757574721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12747575761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12747575699 and 12747575708.

It is not an unprimeable number, because it can be changed into a prime (12747575767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747156 + ... + 764026.

It is an arithmetic number, because the mean of its divisors is an integer number (1601540856).

Almost surely, 2^12747575761 is an apocalyptic number.

It is an amenable number.

12747575761 is a deficient number, since it is larger than the sum of its proper divisors (64751087).

12747575761 is a wasteful number, since it uses less digits than its factorization.

12747575761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20663.

The product of its digits is 2881200, while the sum is 52.

The spelling of 12747575761 in words is "twelve billion, seven hundred forty-seven million, five hundred seventy-five thousand, seven hundred sixty-one".