501740142540473 has 2 divisors, whose sum is σ = 501740142540474. Its totient is φ = 501740142540472.

The previous prime is 501740142540437. The next prime is 501740142540491. The reversal of 501740142540473 is 374045241047105.

Together with previous prime (501740142540437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290396089984144 + 211344052556329 = 17041012^2 + 14537677^2 .

It is a cyclic number.

It is not a de Polignac number, because 501740142540473 - 2²⁴ = 501740125763257 is a prime.

It is not a weakly prime, because it can be changed into another prime (501740144540473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250870071270236 + 250870071270237.

It is an arithmetic number, because the mean of its divisors is an integer number (250870071270237).

Almost surely, 2^{501740142540473} is an apocalyptic number.

It is an amenable number.

501740142540473 is a deficient number, since it is larger than the sum of its proper divisors (1).

501740142540473 is an equidigital number, since it uses as much as digits as its factorization.

501740142540473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1881600, while the sum is 47.

Adding to 501740142540473 its reverse (374045241047105), we get a palindrome (875785383587578).

The spelling of 501740142540473 in words is "five hundred one trillion, seven hundred forty billion, one hundred forty-two million, five hundred forty thousand, four hundred seventy-three".