43872726241 has 4 divisors (see below), whose sum is σ = 45385578900. Its totient is φ = 42359873584.

The previous prime is 43872726197. The next prime is 43872726263. The reversal of 43872726241 is 14262727834.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11004849216 + 32867877025 = 104904^2 + 181295^2 .

It is not a de Polignac number, because 43872726241 - 2²³ = 43864337633 is a prime.

It is a super-2 number, since 2×43872726241² (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 = 43872726191 and 43872726200.

It is not an unprimeable number, because it can be changed into a prime (43872721241) 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, 756426286 + ... + 756426343.

It is an arithmetic number, because the mean of its divisors is an integer number (11346394725).

Almost surely, 2^43872726241 is an apocalyptic number.

It is an amenable number.

43872726241 is a deficient number, since it is larger than the sum of its proper divisors (1512852659).

43872726241 is a wasteful number, since it uses less digits than its factorization.

43872726241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512852658.

The product of its digits is 903168, while the sum is 46.

The spelling of 43872726241 in words is "forty-three billion, eight hundred seventy-two million, seven hundred twenty-six thousand, two hundred forty-one".