4094668181 has 2 divisors, whose sum is σ = 4094668182. Its totient is φ = 4094668180.

The previous prime is 4094668147. The next prime is 4094668231. The reversal of 4094668181 is 1818664904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3043287556 + 1051380625 = 55166^2 + 32425^2 .

It is a cyclic number.

It is not a de Polignac number, because 4094668181 - 2²⁶ = 4027559317 is a prime.

It is a super-2 number, since 2×4094668181² = 33532615024987697522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4094668141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2047334090 + 2047334091.

It is an arithmetic number, because the mean of its divisors is an integer number (2047334091).

Almost surely, 2^4094668181 is an apocalyptic number.

It is an amenable number.

4094668181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4094668181 is an equidigital number, since it uses as much as digits as its factorization.

4094668181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 4094668181 is about 63989.5943181389. The cubic root of 4094668181 is about 1599.8265672691.

The spelling of 4094668181 in words is "four billion, ninety-four million, six hundred sixty-eight thousand, one hundred eighty-one".