38494693667 has 4 divisors (see below), whose sum is σ = 38586130416. Its totient is φ = 38403256920.

The previous prime is 38494693663. The next prime is 38494693687. The reversal of 38494693667 is 76639649483.

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 38494693667 - 2² = 38494693663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38494693663) 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, 45717743 + ... + 45718584.

It is an arithmetic number, because the mean of its divisors is an integer number (9646532604).

Almost surely, 2^38494693667 is an apocalyptic number.

38494693667 is a deficient number, since it is larger than the sum of its proper divisors (91436749).

38494693667 is an equidigital number, since it uses as much as digits as its factorization.

38494693667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91436748.

The product of its digits is 141087744, while the sum is 65.

The spelling of 38494693667 in words is "thirty-eight billion, four hundred ninety-four million, six hundred ninety-three thousand, six hundred sixty-seven".