11857418466437 has 2 divisors, whose sum is σ = 11857418466438. Its totient is φ = 11857418466436.

The previous prime is 11857418466379. The next prime is 11857418466461. The reversal of 11857418466437 is 73466481475811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8085611677441 + 3771806788996 = 2843521^2 + 1942114^2 .

It is a cyclic number.

It is not a de Polignac number, because 11857418466437 - 2²⁰ = 11857417417861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11857418463437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5928709233218 + 5928709233219.

It is an arithmetic number, because the mean of its divisors is an integer number (5928709233219).

Almost surely, 2^{11857418466437} is an apocalyptic number.

It is an amenable number.

11857418466437 is a deficient number, since it is larger than the sum of its proper divisors (1).

11857418466437 is an equidigital number, since it uses as much as digits as its factorization.

11857418466437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108380160, while the sum is 65.

The spelling of 11857418466437 in words is "eleven trillion, eight hundred fifty-seven billion, four hundred eighteen million, four hundred sixty-six thousand, four hundred thirty-seven".