43571297461 has 2 divisors, whose sum is σ = 43571297462. Its totient is φ = 43571297460.

The previous prime is 43571297437. The next prime is 43571297479. The reversal of 43571297461 is 16479217534.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42970802436 + 600495025 = 207294^2 + 24505^2 .

It is a cyclic number.

It is not a de Polignac number, because 43571297461 - 2⁹ = 43571296949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43571237461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21785648730 + 21785648731.

It is an arithmetic number, because the mean of its divisors is an integer number (21785648731).

Almost surely, 2^43571297461 is an apocalyptic number.

It is an amenable number.

43571297461 is a deficient number, since it is larger than the sum of its proper divisors (1).

43571297461 is an equidigital number, since it uses as much as digits as its factorization.

43571297461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The spelling of 43571297461 in words is "forty-three billion, five hundred seventy-one million, two hundred ninety-seven thousand, four hundred sixty-one".