43893183149 has 2 divisors, whose sum is σ = 43893183150. Its totient is φ = 43893183148.

The previous prime is 43893183109. The next prime is 43893183161. The reversal of 43893183149 is 94138139834.

43893183149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43893183049 + 100 = 209507^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 43893183149 - 2¹⁶ = 43893117613 is a prime.

It is a super-2 number, since 2×43893183149² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43893183149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43893183109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21946591574 + 21946591575.

It is an arithmetic number, because the mean of its divisors is an integer number (21946591575).

Almost surely, 2^43893183149 is an apocalyptic number.

It is an amenable number.

43893183149 is a deficient number, since it is larger than the sum of its proper divisors (1).

43893183149 is an equidigital number, since it uses as much as digits as its factorization.

43893183149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 53.

The spelling of 43893183149 in words is "forty-three billion, eight hundred ninety-three million, one hundred eighty-three thousand, one hundred forty-nine".