4136868191 has 16 divisors (see below), whose sum is σ = 4413032448. Its totient is φ = 3871476000.

The previous prime is 4136868173. The next prime is 4136868221. The reversal of 4136868191 is 1918686314.

It is a cyclic number.

It is not a de Polignac number, because 4136868191 - 2²⁶ = 4069759327 is a prime.

It is a super-2 number, since 2×4136868191² = 34227356859415224962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4136868691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119270 + ... + 149996.

It is an arithmetic number, because the mean of its divisors is an integer number (275814528).

Almost surely, 2^4136868191 is an apocalyptic number.

4136868191 is a deficient number, since it is larger than the sum of its proper divisors (276164257).

4136868191 is a wasteful number, since it uses less digits than its factorization.

4136868191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30902.

The product of its digits is 248832, while the sum is 47.

The square root of 4136868191 is about 64318.4902730156. The cubic root of 4136868191 is about 1605.3037783197.

The spelling of 4136868191 in words is "four billion, one hundred thirty-six million, eight hundred sixty-eight thousand, one hundred ninety-one".