11761725667837 has 2 divisors, whose sum is σ = 11761725667838. Its totient is φ = 11761725667836.

The previous prime is 11761725667831. The next prime is 11761725667871. The reversal of 11761725667837 is 73876652716711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11728234471801 + 33491196036 = 3424651^2 + 183006^2 .

It is a cyclic number.

It is not a de Polignac number, because 11761725667837 - 2⁴³ = 2965632645629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11761725667831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5880862833918 + 5880862833919.

It is an arithmetic number, because the mean of its divisors is an integer number (5880862833919).

Almost surely, 2^{11761725667837} is an apocalyptic number.

It is an amenable number.

11761725667837 is a deficient number, since it is larger than the sum of its proper divisors (1).

11761725667837 is an equidigital number, since it uses as much as digits as its factorization.

11761725667837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124467840, while the sum is 67.

The spelling of 11761725667837 in words is "eleven trillion, seven hundred sixty-one billion, seven hundred twenty-five million, six hundred sixty-seven thousand, eight hundred thirty-seven".