43454245441 has 2 divisors, whose sum is σ = 43454245442. Its totient is φ = 43454245440.

The previous prime is 43454245433. The next prime is 43454245459. The reversal of 43454245441 is 14454245434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28299650625 + 15154594816 = 168225^2 + 123104^2 .

It is a cyclic number.

It is not a de Polignac number, because 43454245441 - 2³ = 43454245433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43454245394 and 43454245403.

It is not a weakly prime, because it can be changed into another prime (43454240441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21727122720 + 21727122721.

It is an arithmetic number, because the mean of its divisors is an integer number (21727122721).

Almost surely, 2^43454245441 is an apocalyptic number.

It is an amenable number.

43454245441 is a deficient number, since it is larger than the sum of its proper divisors (1).

43454245441 is an equidigital number, since it uses as much as digits as its factorization.

43454245441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 614400, while the sum is 40.

The spelling of 43454245441 in words is "forty-three billion, four hundred fifty-four million, two hundred forty-five thousand, four hundred forty-one".