38775072139 has 2 divisors, whose sum is σ = 38775072140. Its totient is φ = 38775072138.

The previous prime is 38775072131. The next prime is 38775072209. The reversal of 38775072139 is 93127057783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38775072139 - 2³ = 38775072131 is a prime.

It is not a weakly prime, because it can be changed into another prime (38775072131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19387536069 + 19387536070.

It is an arithmetic number, because the mean of its divisors is an integer number (19387536070).

Almost surely, 2^38775072139 is an apocalyptic number.

38775072139 is a deficient number, since it is larger than the sum of its proper divisors (1).

38775072139 is an equidigital number, since it uses as much as digits as its factorization.

38775072139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The spelling of 38775072139 in words is "thirty-eight billion, seven hundred seventy-five million, seventy-two thousand, one hundred thirty-nine".