38364068891 has 2 divisors, whose sum is σ = 38364068892. Its totient is φ = 38364068890.

The previous prime is 38364068863. The next prime is 38364068903. The reversal of 38364068891 is 19886046383.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38364068891 - 2²⁶ = 38296960027 is a prime.

It is not a weakly prime, because it can be changed into another prime (38364064891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19182034445 + 19182034446.

It is an arithmetic number, because the mean of its divisors is an integer number (19182034446).

Almost surely, 2^38364068891 is an apocalyptic number.

38364068891 is a deficient number, since it is larger than the sum of its proper divisors (1).

38364068891 is an equidigital number, since it uses as much as digits as its factorization.

38364068891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5971968, while the sum is 56.

The spelling of 38364068891 in words is "thirty-eight billion, three hundred sixty-four million, sixty-eight thousand, eight hundred ninety-one".