43054526369 has 2 divisors, whose sum is σ = 43054526370. Its totient is φ = 43054526368.

The previous prime is 43054526363. The next prime is 43054526407. The reversal of 43054526369 is 96362545034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38472861025 + 4581665344 = 196145^2 + 67688^2 .

It is a cyclic number.

It is not a de Polignac number, because 43054526369 - 2⁴ = 43054526353 is a prime.

It is a super-2 number, since 2×43054526369² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (43054526363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21527263184 + 21527263185.

It is an arithmetic number, because the mean of its divisors is an integer number (21527263185).

Almost surely, 2^43054526369 is an apocalyptic number.

It is an amenable number.

43054526369 is a deficient number, since it is larger than the sum of its proper divisors (1).

43054526369 is an equidigital number, since it uses as much as digits as its factorization.

43054526369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 43054526369 in words is "forty-three billion, fifty-four million, five hundred twenty-six thousand, three hundred sixty-nine".