43109201745 has 96 divisors (see below), whose sum is σ = 82097608320. Its totient is φ = 20848389120.

The previous prime is 43109201711. The next prime is 43109201747. The reversal of 43109201745 is 54710290134.

It is not a de Polignac number, because 43109201745 - 2⁸ = 43109201489 is a prime.

It is a super-2 number, since 2×43109201745² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43109201747) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1846314 + ... + 1869516.

It is an arithmetic number, because the mean of its divisors is an integer number (855183420).

Almost surely, 2^43109201745 is an apocalyptic number.

43109201745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43109201745 is a deficient number, since it is larger than the sum of its proper divisors (38988406575).

43109201745 is a wasteful number, since it uses less digits than its factorization.

43109201745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23327 (or 23324 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 43109201745 its reverse (54710290134), we get a palindrome (97819491879).

The spelling of 43109201745 in words is "forty-three billion, one hundred nine million, two hundred one thousand, seven hundred forty-five".