138762118643 has 2 divisors, whose sum is σ = 138762118644. Its totient is φ = 138762118642.

The previous prime is 138762118637. The next prime is 138762118669. The reversal of 138762118643 is 346811267831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138762118643 is a prime.

It is a super-2 number, since 2×138762118643² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 138762118591 and 138762118600.

It is not a weakly prime, because it can be changed into another prime (138762115643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69381059321 + 69381059322.

It is an arithmetic number, because the mean of its divisors is an integer number (69381059322).

Almost surely, 2^138762118643 is an apocalyptic number.

138762118643 is a deficient number, since it is larger than the sum of its proper divisors (1).

138762118643 is an equidigital number, since it uses as much as digits as its factorization.

138762118643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 50.

The spelling of 138762118643 in words is "one hundred thirty-eight billion, seven hundred sixty-two million, one hundred eighteen thousand, six hundred forty-three".