5138743679 has 2 divisors, whose sum is σ = 5138743680. Its totient is φ = 5138743678.

The previous prime is 5138743661. The next prime is 5138743699. The reversal of 5138743679 is 9763478315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5138743679 - 2¹⁶ = 5138678143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5138743679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5138743619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569371839 + 2569371840.

It is an arithmetic number, because the mean of its divisors is an integer number (2569371840).

Almost surely, 2^5138743679 is an apocalyptic number.

5138743679 is a deficient number, since it is larger than the sum of its proper divisors (1).

5138743679 is an equidigital number, since it uses as much as digits as its factorization.

5138743679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 53.

The square root of 5138743679 is about 71685.0310664646. The cubic root of 5138743679 is about 1725.6484215245.

The spelling of 5138743679 in words is "five billion, one hundred thirty-eight million, seven hundred forty-three thousand, six hundred seventy-nine".