138004384751 has 2 divisors, whose sum is σ = 138004384752. Its totient is φ = 138004384750.

The previous prime is 138004384729. The next prime is 138004384753. The reversal of 138004384751 is 157483400831.

It is a strong prime.

It is an emirp because it is prime and its reverse (157483400831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138004384751 is a prime.

It is a Sophie Germain prime.

Together with 138004384753, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138004384753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69002192375 + 69002192376.

It is an arithmetic number, because the mean of its divisors is an integer number (69002192376).

Almost surely, 2^138004384751 is an apocalyptic number.

138004384751 is a deficient number, since it is larger than the sum of its proper divisors (1).

138004384751 is an equidigital number, since it uses as much as digits as its factorization.

138004384751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 138004384751 in words is "one hundred thirty-eight billion, four million, three hundred eighty-four thousand, seven hundred fifty-one".