4138418491 has 2 divisors, whose sum is σ = 4138418492. Its totient is φ = 4138418490.

The previous prime is 4138418467. The next prime is 4138418509. The reversal of 4138418491 is 1948148314.

4138418491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4138418491 - 2³¹ = 1990934843 is a prime.

It is not a weakly prime, because it can be changed into another prime (4138418411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069209245 + 2069209246.

It is an arithmetic number, because the mean of its divisors is an integer number (2069209246).

Almost surely, 2^4138418491 is an apocalyptic number.

4138418491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138418491 is an equidigital number, since it uses as much as digits as its factorization.

4138418491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 43.

The square root of 4138418491 is about 64330.5408884458. The cubic root of 4138418491 is about 1605.5042835904.

The spelling of 4138418491 in words is "four billion, one hundred thirty-eight million, four hundred eighteen thousand, four hundred ninety-one".