87453109043719 has 2 divisors, whose sum is σ = 87453109043720. Its totient is φ = 87453109043718.

The previous prime is 87453109043701. The next prime is 87453109043749. The reversal of 87453109043719 is 91734090135478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87453109043719 - 2¹³ = 87453109035527 is a prime.

It is a super-2 number, since 2×87453109043719² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87453109043749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43726554521859 + 43726554521860.

It is an arithmetic number, because the mean of its divisors is an integer number (43726554521860).

Almost surely, 2^{87453109043719} is an apocalyptic number.

87453109043719 is a deficient number, since it is larger than the sum of its proper divisors (1).

87453109043719 is an equidigital number, since it uses as much as digits as its factorization.

87453109043719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 87453109043719 in words is "eighty-seven trillion, four hundred fifty-three billion, one hundred nine million, forty-three thousand, seven hundred nineteen".