538811136901 has 2 divisors, whose sum is σ = 538811136902. Its totient is φ = 538811136900.

The previous prime is 538811136859. The next prime is 538811136917. The reversal of 538811136901 is 109631118835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525081390625 + 13729746276 = 724625^2 + 117174^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538811136901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538811136931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269405568450 + 269405568451.

It is an arithmetic number, because the mean of its divisors is an integer number (269405568451).

Almost surely, 2^538811136901 is an apocalyptic number.

It is an amenable number.

538811136901 is a deficient number, since it is larger than the sum of its proper divisors (1).

538811136901 is an equidigital number, since it uses as much as digits as its factorization.

538811136901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 538811136901 in words is "five hundred thirty-eight billion, eight hundred eleven million, one hundred thirty-six thousand, nine hundred one".