38091163999 has 4 divisors (see below), whose sum is σ = 43532758864. Its totient is φ = 32649569136.

The previous prime is 38091163987. The next prime is 38091164051. The reversal of 38091163999 is 99936119083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38091163999 - 2²³ = 38082775391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38091163909) 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 in 3 ways as a sum of consecutive naturals, for example, 2720797422 + ... + 2720797435.

It is an arithmetic number, because the mean of its divisors is an integer number (10883189716).

Almost surely, 2^38091163999 is an apocalyptic number.

38091163999 is a deficient number, since it is larger than the sum of its proper divisors (5441594865).

38091163999 is an equidigital number, since it uses as much as digits as its factorization.

38091163999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5441594864.

The product of its (nonzero) digits is 2834352, while the sum is 58.

The spelling of 38091163999 in words is "thirty-eight billion, ninety-one million, one hundred sixty-three thousand, nine hundred ninety-nine".