38534867779 has 2 divisors, whose sum is σ = 38534867780. Its totient is φ = 38534867778.

The previous prime is 38534867771. The next prime is 38534867821. The reversal of 38534867779 is 97776843583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38534867779 - 2³ = 38534867771 is a prime.

It is not a weakly prime, because it can be changed into another prime (38534867771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19267433889 + 19267433890.

It is an arithmetic number, because the mean of its divisors is an integer number (19267433890).

Almost surely, 2^38534867779 is an apocalyptic number.

38534867779 is a deficient number, since it is larger than the sum of its proper divisors (1).

38534867779 is an equidigital number, since it uses as much as digits as its factorization.

38534867779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 213373440, while the sum is 67.

The spelling of 38534867779 in words is "thirty-eight billion, five hundred thirty-four million, eight hundred sixty-seven thousand, seven hundred seventy-nine".