43521132497783 has 2 divisors, whose sum is σ = 43521132497784. Its totient is φ = 43521132497782.

The previous prime is 43521132497663. The next prime is 43521132497813. The reversal of 43521132497783 is 38779423112534.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43521132497783 - 2⁸ = 43521132497527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43521152497783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21760566248891 + 21760566248892.

It is an arithmetic number, because the mean of its divisors is an integer number (21760566248892).

Almost surely, 2^{43521132497783} is an apocalyptic number.

43521132497783 is a deficient number, since it is larger than the sum of its proper divisors (1).

43521132497783 is an equidigital number, since it uses as much as digits as its factorization.

43521132497783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30481920, while the sum is 59.

The spelling of 43521132497783 in words is "forty-three trillion, five hundred twenty-one billion, one hundred thirty-two million, four hundred ninety-seven thousand, seven hundred eighty-three".