1675117888421 has 2 divisors, whose sum is σ = 1675117888422. Its totient is φ = 1675117888420.

The previous prime is 1675117888417. The next prime is 1675117888441. The reversal of 1675117888421 is 1248887115761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1181653787521 + 493464100900 = 1087039^2 + 702470^2 .

It is a cyclic number.

It is not a de Polignac number, because 1675117888421 - 2² = 1675117888417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1675117888441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837558944210 + 837558944211.

It is an arithmetic number, because the mean of its divisors is an integer number (837558944211).

Almost surely, 2^{1675117888421} is an apocalyptic number.

It is an amenable number.

1675117888421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1675117888421 is an equidigital number, since it uses as much as digits as its factorization.

1675117888421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6021120, while the sum is 59.

The spelling of 1675117888421 in words is "one trillion, six hundred seventy-five billion, one hundred seventeen million, eight hundred eighty-eight thousand, four hundred twenty-one".