38819749267139 has 2 divisors, whose sum is σ = 38819749267140. Its totient is φ = 38819749267138.

The previous prime is 38819749267099. The next prime is 38819749267157. The reversal of 38819749267139 is 93176294791883.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38819749267139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38819749267139.

It is not a weakly prime, because it can be changed into another prime (38819749266139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19409874633569 + 19409874633570.

It is an arithmetic number, because the mean of its divisors is an integer number (19409874633570).

Almost surely, 2^{38819749267139} is an apocalyptic number.

38819749267139 is a deficient number, since it is larger than the sum of its proper divisors (1).

38819749267139 is an equidigital number, since it uses as much as digits as its factorization.

38819749267139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987614208, while the sum is 77.

The spelling of 38819749267139 in words is "thirty-eight trillion, eight hundred nineteen billion, seven hundred forty-nine million, two hundred sixty-seven thousand, one hundred thirty-nine".