87745289748079 has 2 divisors, whose sum is σ = 87745289748080. Its totient is φ = 87745289748078.

The previous prime is 87745289748047. The next prime is 87745289748101. The reversal of 87745289748079 is 97084798254778.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87745289748079 - 2⁵ = 87745289748047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87745289747987 and 87745289748005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87745289748019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43872644874039 + 43872644874040.

It is an arithmetic number, because the mean of its divisors is an integer number (43872644874040).

Almost surely, 2^{87745289748079} is an apocalyptic number.

87745289748079 is a deficient number, since it is larger than the sum of its proper divisors (1).

87745289748079 is an equidigital number, since it uses as much as digits as its factorization.

87745289748079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15931883520, while the sum is 85.

The spelling of 87745289748079 in words is "eighty-seven trillion, seven hundred forty-five billion, two hundred eighty-nine million, seven hundred forty-eight thousand, seventy-nine".