12751769961 has 24 divisors (see below), whose sum is σ = 21054560384. Its totient is φ = 7285334400.

The previous prime is 12751769951. The next prime is 12751769999. The reversal of 12751769961 is 16996715721.

12751769961 is a `hidden beast` number, since 1 + 2 + 7 + 517 + 69 + 9 + 61 = 666.

It is not a de Polignac number, because 12751769961 - 2⁶ = 12751769897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12751769898 and 12751769907.

It is not an unprimeable number, because it can be changed into a prime (12751769951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 377361 + ... + 409761.

Almost surely, 2^12751769961 is an apocalyptic number.

It is an amenable number.

12751769961 is a deficient number, since it is larger than the sum of its proper divisors (8302790423).

12751769961 is a wasteful number, since it uses less digits than its factorization.

12751769961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38661 (or 38658 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 54.

The spelling of 12751769961 in words is "twelve billion, seven hundred fifty-one million, seven hundred sixty-nine thousand, nine hundred sixty-one".