11746457861 has 2 divisors, whose sum is σ = 11746457862. Its totient is φ = 11746457860.

The previous prime is 11746457851. The next prime is 11746457867. The reversal of 11746457861 is 16875464711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10731716836 + 1014741025 = 103594^2 + 31855^2 .

It is a cyclic number.

It is not a de Polignac number, because 11746457861 - 2⁶ = 11746457797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11746457867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5873228930 + 5873228931.

It is an arithmetic number, because the mean of its divisors is an integer number (5873228931).

Almost surely, 2^11746457861 is an apocalyptic number.

It is an amenable number.

11746457861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11746457861 is an equidigital number, since it uses as much as digits as its factorization.

11746457861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 50.

The spelling of 11746457861 in words is "eleven billion, seven hundred forty-six million, four hundred fifty-seven thousand, eight hundred sixty-one".