38318049851 has 4 divisors (see below), whose sum is σ = 38320959600. Its totient is φ = 38315140104.

The previous prime is 38318049839. The next prime is 38318049883. The reversal of 38318049851 is 15894081383.

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 38318049851 - 2³⁰ = 37244308027 is a prime.

It is a super-3 number, since 3×38318049851³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38318049851.

It is not an unprimeable number, because it can be changed into a prime (38318349851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435031 + ... + 1461488.

It is an arithmetic number, because the mean of its divisors is an integer number (9580239900).

Almost surely, 2^38318049851 is an apocalyptic number.

38318049851 is a deficient number, since it is larger than the sum of its proper divisors (2909749).

38318049851 is a wasteful number, since it uses less digits than its factorization.

38318049851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909748.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 38318049851 in words is "thirty-eight billion, three hundred eighteen million, forty-nine thousand, eight hundred fifty-one".