138253110599987 has 2 divisors, whose sum is σ = 138253110599988. Its totient is φ = 138253110599986.

The previous prime is 138253110599977. The next prime is 138253110600019. The reversal of 138253110599987 is 789995011352831.

It is a weak prime.

It is an emirp because it is prime and its reverse (789995011352831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138253110599987 - 2²⁰ = 138253109551411 is a prime.

It is a super-2 number, since 2×138253110599987² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138253110599987.

It is not a weakly prime, because it can be changed into another prime (138253110599927) 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 as a sum of consecutive naturals, namely, 69126555299993 + 69126555299994.

It is an arithmetic number, because the mean of its divisors is an integer number (69126555299994).

Almost surely, 2^{138253110599987} is an apocalyptic number.

138253110599987 is a deficient number, since it is larger than the sum of its proper divisors (1).

138253110599987 is an equidigital number, since it uses as much as digits as its factorization.

138253110599987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 146966400, while the sum is 71.

The spelling of 138253110599987 in words is "one hundred thirty-eight trillion, two hundred fifty-three billion, one hundred ten million, five hundred ninety-nine thousand, nine hundred eighty-seven".