636113743541 has 2 divisors, whose sum is σ = 636113743542. Its totient is φ = 636113743540.

The previous prime is 636113743523. The next prime is 636113743553. The reversal of 636113743541 is 145347311636.

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., 628135502500 + 7978241041 = 792550^2 + 89321^2 .

It is a cyclic number.

It is not a de Polignac number, because 636113743541 - 2⁶ = 636113743477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 636113743492 and 636113743501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (636113743501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318056871770 + 318056871771.

It is an arithmetic number, because the mean of its divisors is an integer number (318056871771).

Almost surely, 2^636113743541 is an apocalyptic number.

It is an amenable number.

636113743541 is a deficient number, since it is larger than the sum of its proper divisors (1).

636113743541 is an equidigital number, since it uses as much as digits as its factorization.

636113743541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 44.

The spelling of 636113743541 in words is "six hundred thirty-six billion, one hundred thirteen million, seven hundred forty-three thousand, five hundred forty-one".