38421043117 has 2 divisors, whose sum is σ = 38421043118. Its totient is φ = 38421043116.

The previous prime is 38421043027. The next prime is 38421043223. The reversal of 38421043117 is 71134012483.

38421043117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20843851876 + 17577191241 = 144374^2 + 132579^2 .

It is a cyclic number.

It is not a de Polignac number, because 38421043117 - 2²³ = 38412654509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38421041117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19210521558 + 19210521559.

It is an arithmetic number, because the mean of its divisors is an integer number (19210521559).

Almost surely, 2^38421043117 is an apocalyptic number.

It is an amenable number.

38421043117 is a deficient number, since it is larger than the sum of its proper divisors (1).

38421043117 is an equidigital number, since it uses as much as digits as its factorization.

38421043117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 38421043117 in words is "thirty-eight billion, four hundred twenty-one million, forty-three thousand, one hundred seventeen".