43297126349 has 4 divisors (see below), whose sum is σ = 43302420480. Its totient is φ = 43291832220.

The previous prime is 43297126321. The next prime is 43297126363. The reversal of 43297126349 is 94362179234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43297126349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43297126297 and 43297126306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43297126309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2634779 + ... + 2651160.

It is an arithmetic number, because the mean of its divisors is an integer number (10825605120).

Almost surely, 2^43297126349 is an apocalyptic number.

It is an amenable number.

43297126349 is a deficient number, since it is larger than the sum of its proper divisors (5294131).

43297126349 is an equidigital number, since it uses as much as digits as its factorization.

43297126349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294130.

The product of its digits is 1959552, while the sum is 50.

The spelling of 43297126349 in words is "forty-three billion, two hundred ninety-seven million, one hundred twenty-six thousand, three hundred forty-nine".