38401377387539 has 2 divisors, whose sum is σ = 38401377387540. Its totient is φ = 38401377387538.

The previous prime is 38401377387491. The next prime is 38401377387613. The reversal of 38401377387539 is 93578377310483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38401377387539 - 2²⁴ = 38401360610323 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (38401377387739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19200688693769 + 19200688693770.

It is an arithmetic number, because the mean of its divisors is an integer number (19200688693770).

Almost surely, 2^{38401377387539} is an apocalyptic number.

38401377387539 is a deficient number, since it is larger than the sum of its proper divisors (1).

38401377387539 is an equidigital number, since it uses as much as digits as its factorization.

38401377387539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320060160, while the sum is 68.

The spelling of 38401377387539 in words is "thirty-eight trillion, four hundred one billion, three hundred seventy-seven million, three hundred eighty-seven thousand, five hundred thirty-nine".