38137808637779 has 2 divisors, whose sum is σ = 38137808637780. Its totient is φ = 38137808637778.

The previous prime is 38137808637737. The next prime is 38137808637793. The reversal of 38137808637779 is 97773680873183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38137808637779 - 2¹⁶ = 38137808572243 is a prime.

It is not a weakly prime, because it can be changed into another prime (38137808637679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19068904318889 + 19068904318890.

It is an arithmetic number, because the mean of its divisors is an integer number (19068904318890).

Almost surely, 2^{38137808637779} is an apocalyptic number.

38137808637779 is a deficient number, since it is larger than the sum of its proper divisors (1).

38137808637779 is an equidigital number, since it uses as much as digits as its factorization.

38137808637779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792336896, while the sum is 77.

The spelling of 38137808637779 in words is "thirty-eight trillion, one hundred thirty-seven billion, eight hundred eight million, six hundred thirty-seven thousand, seven hundred seventy-nine".