43094815057409 has 2 divisors, whose sum is σ = 43094815057410. Its totient is φ = 43094815057408.

The previous prime is 43094815057321. The next prime is 43094815057417. The reversal of 43094815057409 is 90475051849034.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42673033651600 + 421781405809 = 6532460^2 + 649447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43094815057409 is a prime.

It is not a weakly prime, because it can be changed into another prime (43094815057009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21547407528704 + 21547407528705.

It is an arithmetic number, because the mean of its divisors is an integer number (21547407528705).

Almost surely, 2^{43094815057409} is an apocalyptic number.

It is an amenable number.

43094815057409 is a deficient number, since it is larger than the sum of its proper divisors (1).

43094815057409 is an equidigital number, since it uses as much as digits as its factorization.

43094815057409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 43094815057409 in words is "forty-three trillion, ninety-four billion, eight hundred fifteen million, fifty-seven thousand, four hundred nine".