138290264543 has 4 divisors (see below), whose sum is σ = 139089630408. Its totient is φ = 137490898680.

The previous prime is 138290264503. The next prime is 138290264549. The reversal of 138290264543 is 345462092831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138290264543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138290264549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399682673 + ... + 399683018.

It is an arithmetic number, because the mean of its divisors is an integer number (34772407602).

Almost surely, 2^138290264543 is an apocalyptic number.

138290264543 is a deficient number, since it is larger than the sum of its proper divisors (799365865).

138290264543 is an equidigital number, since it uses as much as digits as its factorization.

138290264543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799365864.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 138290264543 in words is "one hundred thirty-eight billion, two hundred ninety million, two hundred sixty-four thousand, five hundred forty-three".