6750087759421 has 2 divisors, whose sum is σ = 6750087759422. Its totient is φ = 6750087759420.

The previous prime is 6750087759419. The next prime is 6750087759463. The reversal of 6750087759421 is 1249577800576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4171863440196 + 2578224319225 = 2042514^2 + 1605685^2 .

It is a cyclic number.

It is not a de Polignac number, because 6750087759421 - 2¹ = 6750087759419 is a prime.

Together with 6750087759419, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6750087759421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6750087759221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3375043879710 + 3375043879711.

It is an arithmetic number, because the mean of its divisors is an integer number (3375043879711).

Almost surely, 2^{6750087759421} is an apocalyptic number.

It is an amenable number.

6750087759421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6750087759421 is an equidigital number, since it uses as much as digits as its factorization.

6750087759421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29635200, while the sum is 61.

The spelling of 6750087759421 in words is "six trillion, seven hundred fifty billion, eighty-seven million, seven hundred fifty-nine thousand, four hundred twenty-one".