1751816359481 has 2 divisors, whose sum is σ = 1751816359482. Its totient is φ = 1751816359480.

The previous prime is 1751816359379. The next prime is 1751816359483. The reversal of 1751816359481 is 1849536181571.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1749746928400 + 2069431081 = 1322780^2 + 45491^2 .

It is a cyclic number.

It is not a de Polignac number, because 1751816359481 - 2¹⁸ = 1751816097337 is a prime.

It is a super-2 number, since 2×1751816359481² (a number of 25 digits) contains 22 as substring.

Together with 1751816359483, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1751816359481.

It is not a weakly prime, because it can be changed into another prime (1751816359483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 875908179740 + 875908179741.

It is an arithmetic number, because the mean of its divisors is an integer number (875908179741).

Almost surely, 2^{1751816359481} is an apocalyptic number.

It is an amenable number.

1751816359481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1751816359481 is an equidigital number, since it uses as much as digits as its factorization.

1751816359481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 59.

The spelling of 1751816359481 in words is "one trillion, seven hundred fifty-one billion, eight hundred sixteen million, three hundred fifty-nine thousand, four hundred eighty-one".