87453109043749 has 2 divisors, whose sum is σ = 87453109043750. Its totient is φ = 87453109043748.

The previous prime is 87453109043719. The next prime is 87453109043753. The reversal of 87453109043749 is 94734090135478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76669812576900 + 10783296466849 = 8756130^2 + 3283793^2 .

It is a cyclic number.

It is not a de Polignac number, because 87453109043749 - 2¹⁷ = 87453108912677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87453109043719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43726554521874 + 43726554521875.

It is an arithmetic number, because the mean of its divisors is an integer number (43726554521875).

Almost surely, 2^{87453109043749} is an apocalyptic number.

It is an amenable number.

87453109043749 is a deficient number, since it is larger than the sum of its proper divisors (1).

87453109043749 is an equidigital number, since it uses as much as digits as its factorization.

87453109043749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 87453109043749 in words is "eighty-seven trillion, four hundred fifty-three billion, one hundred nine million, forty-three thousand, seven hundred forty-nine".