38535330377891 has 2 divisors, whose sum is σ = 38535330377892. Its totient is φ = 38535330377890.

The previous prime is 38535330377821. The next prime is 38535330377917. The reversal of 38535330377891 is 19877303353583.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38535330377891 is a prime.

It is not a weakly prime, because it can be changed into another prime (38535330377821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19267665188945 + 19267665188946.

It is an arithmetic number, because the mean of its divisors is an integer number (19267665188946).

Almost surely, 2^{38535330377891} is an apocalyptic number.

38535330377891 is a deficient number, since it is larger than the sum of its proper divisors (1).

38535330377891 is an equidigital number, since it uses as much as digits as its factorization.

38535330377891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 171460800, while the sum is 65.

The spelling of 38535330377891 in words is "thirty-eight trillion, five hundred thirty-five billion, three hundred thirty million, three hundred seventy-seven thousand, eight hundred ninety-one".