12171761741 has 8 divisors (see below), whose sum is σ = 12836889120. Its totient is φ = 11509085232.

The previous prime is 12171761731. The next prime is 12171761783. The reversal of 12171761741 is 14716717121.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-12171761741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12171761695 and 12171761704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12171761731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602510 + ... + 622383.

It is an arithmetic number, because the mean of its divisors is an integer number (1604611140).

Almost surely, 2^12171761741 is an apocalyptic number.

It is an amenable number.

12171761741 is a deficient number, since it is larger than the sum of its proper divisors (665127379).

12171761741 is a wasteful number, since it uses less digits than its factorization.

12171761741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225435.

The product of its digits is 16464, while the sum is 38.

The spelling of 12171761741 in words is "twelve billion, one hundred seventy-one million, seven hundred sixty-one thousand, seven hundred forty-one".