43243245451 has 4 divisors (see below), whose sum is σ = 49420851952. Its totient is φ = 37065638952.

The previous prime is 43243245433. The next prime is 43243245469. The reversal of 43243245451 is 15454234234.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (43243245433) and next prime (43243245469).

It is a cyclic number.

It is not a de Polignac number, because 43243245451 - 2²³ = 43234856843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43243245451.

It is not an unprimeable number, because it can be changed into a prime (43243245421) 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, 3088803240 + ... + 3088803253.

It is an arithmetic number, because the mean of its divisors is an integer number (12355212988).

Almost surely, 2^43243245451 is an apocalyptic number.

43243245451 is a deficient number, since it is larger than the sum of its proper divisors (6177606501).

43243245451 is an equidigital number, since it uses as much as digits as its factorization.

43243245451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6177606500.

The product of its digits is 230400, while the sum is 37.

Adding to 43243245451 its reverse (15454234234), we get a palindrome (58697479685).

The spelling of 43243245451 in words is "forty-three billion, two hundred forty-three million, two hundred forty-five thousand, four hundred fifty-one".