51435231443 has 2 divisors, whose sum is σ = 51435231444. Its totient is φ = 51435231442.

The previous prime is 51435231391. The next prime is 51435231487. The reversal of 51435231443 is 34413253415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51435231443 - 2¹⁰ = 51435230419 is a prime.

It is not a weakly prime, because it can be changed into another prime (51435231143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25717615721 + 25717615722.

It is an arithmetic number, because the mean of its divisors is an integer number (25717615722).

Almost surely, 2^51435231443 is an apocalyptic number.

51435231443 is a deficient number, since it is larger than the sum of its proper divisors (1).

51435231443 is an equidigital number, since it uses as much as digits as its factorization.

51435231443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 35.

Adding to 51435231443 its reverse (34413253415), we get a palindrome (85848484858).

The spelling of 51435231443 in words is "fifty-one billion, four hundred thirty-five million, two hundred thirty-one thousand, four hundred forty-three".