3538721838867 has 8 divisors (see below), whose sum is σ = 4718328244224. Its totient is φ = 2359131663048.

The previous prime is 3538721838857. The next prime is 3538721838871. The reversal of 3538721838867 is 7688381278353.

3538721838867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3538721838867 - 2¹⁰ = 3538721837843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3538721838857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3539163 + ... + 4427540.

It is an arithmetic number, because the mean of its divisors is an integer number (589791030528).

Almost surely, 2^{3538721838867} is an apocalyptic number.

3538721838867 is a deficient number, since it is larger than the sum of its proper divisors (1179606405357).

3538721838867 is a wasteful number, since it uses less digits than its factorization.

3538721838867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8114769.

The product of its digits is 325140480, while the sum is 69.

The spelling of 3538721838867 in words is "three trillion, five hundred thirty-eight billion, seven hundred twenty-one million, eight hundred thirty-eight thousand, eight hundred sixty-seven".