138312437760019 has 2 divisors, whose sum is σ = 138312437760020. Its totient is φ = 138312437760018.

The previous prime is 138312437759983. The next prime is 138312437760041. The reversal of 138312437760019 is 910067734213831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138312437760019 - 2⁷ = 138312437759891 is a prime.

It is a super-2 number, since 2×138312437760019² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (138312437760059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69156218880009 + 69156218880010.

It is an arithmetic number, because the mean of its divisors is an integer number (69156218880010).

Almost surely, 2^{138312437760019} is an apocalyptic number.

138312437760019 is a deficient number, since it is larger than the sum of its proper divisors (1).

138312437760019 is an equidigital number, since it uses as much as digits as its factorization.

138312437760019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 138312437760019 in words is "one hundred thirty-eight trillion, three hundred twelve billion, four hundred thirty-seven million, seven hundred sixty thousand, nineteen".