538633387011501 has 6 divisors (see below), whose sum is σ = 778026003461070. Its totient is φ = 359088924674328.

The previous prime is 538633387011481. The next prime is 538633387011563. The reversal of 538633387011501 is 105110783336835.

It is a happy number.

538633387011501 is a `hidden beast` number, since 5 + 3 + 8 + 6 + 33 + 38 + 70 + 1 + 1 + 501 = 666.

It can be written as a sum of positive squares in only one way, i.e., 368181301178601 + 170452085832900 = 19188051^2 + 13055730^2 .

It is not a de Polignac number, because 538633387011501 - 2¹⁴ = 538633386995117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538633387011301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29924077056186 + ... + 29924077056203.

It is an arithmetic number, because the mean of its divisors is an integer number (129671000576845).

Almost surely, 2^{538633387011501} is an apocalyptic number.

It is an amenable number.

538633387011501 is a deficient number, since it is larger than the sum of its proper divisors (239392616449569).

538633387011501 is a wasteful number, since it uses less digits than its factorization.

538633387011501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59848154112395 (or 59848154112392 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 538633387011501 in words is "five hundred thirty-eight trillion, six hundred thirty-three billion, three hundred eighty-seven million, eleven thousand, five hundred one".