43893183049 has 9 divisors (see below), whose sum is σ = 45889594023. Its totient is φ = 41980174632.

The previous prime is 43893183023. The next prime is 43893183053. The reversal of 43893183049 is 94038139834.

The square root of 43893183049 is 209507.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4950107449 + 38943075600 = 70357^2 + 197340^2 .

It is not a de Polignac number, because 43893183049 - 2⁹ = 43893182537 is a prime.

It is a super-2 number, since 2×43893183049² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43893182987 and 43893183005.

It is not an unprimeable number, because it can be changed into a prime (43893183149) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4814107 + ... + 4823215.

Almost surely, 2^43893183049 is an apocalyptic number.

43893183049 is the 209507-th square number.

43893183049 is the 104754-th centered octagonal number.

It is an amenable number.

43893183049 is a deficient number, since it is larger than the sum of its proper divisors (1996410974).

43893183049 is an frugal number, since it uses more digits than its factorization.

43893183049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18264 (or 9132 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 43893183049 in words is "forty-three billion, eight hundred ninety-three million, one hundred eighty-three thousand, forty-nine".