4423691149 has 2 divisors, whose sum is σ = 4423691150. Its totient is φ = 4423691148.

The previous prime is 4423691123. The next prime is 4423691191. The reversal of 4423691149 is 9411963244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2877786025 + 1545905124 = 53645^2 + 39318^2 .

It is a cyclic number.

It is not a de Polignac number, because 4423691149 - 2¹³ = 4423682957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4423692149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2211845574 + 2211845575.

It is an arithmetic number, because the mean of its divisors is an integer number (2211845575).

Almost surely, 2^4423691149 is an apocalyptic number.

It is an amenable number.

4423691149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4423691149 is an equidigital number, since it uses as much as digits as its factorization.

4423691149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 4423691149 is about 66510.8348241097. The cubic root of 4423691149 is about 1641.5782878971.

The spelling of 4423691149 in words is "four billion, four hundred twenty-three million, six hundred ninety-one thousand, one hundred forty-nine".