38806744121 has 4 divisors (see below), whose sum is σ = 38813796432. Its totient is φ = 38799691812.

The previous prime is 38806744091. The next prime is 38806744127. The reversal of 38806744121 is 12144760883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12144760883 = 17 ⋅714397699.

It is a cyclic number.

It is not a de Polignac number, because 38806744121 - 2¹⁸ = 38806481977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38806744127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3517895 + ... + 3528908.

It is an arithmetic number, because the mean of its divisors is an integer number (9703449108).

Almost surely, 2^38806744121 is an apocalyptic number.

It is an amenable number.

38806744121 is a deficient number, since it is larger than the sum of its proper divisors (7052311).

38806744121 is an equidigital number, since it uses as much as digits as its factorization.

38806744121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7052310.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 38806744121 in words is "thirty-eight billion, eight hundred six million, seven hundred forty-four thousand, one hundred twenty-one".