12173706972587 has 2 divisors, whose sum is σ = 12173706972588. Its totient is φ = 12173706972586.

The previous prime is 12173706972541. The next prime is 12173706972607. The reversal of 12173706972587 is 78527960737121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12173706972587 - 2¹⁶ = 12173706907051 is a prime.

It is not a weakly prime, because it can be changed into another prime (12173706972487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6086853486293 + 6086853486294.

It is an arithmetic number, because the mean of its divisors is an integer number (6086853486294).

Almost surely, 2^{12173706972587} is an apocalyptic number.

12173706972587 is a deficient number, since it is larger than the sum of its proper divisors (1).

12173706972587 is an equidigital number, since it uses as much as digits as its factorization.

12173706972587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62233920, while the sum is 65.

The spelling of 12173706972587 in words is "twelve trillion, one hundred seventy-three billion, seven hundred six million, nine hundred seventy-two thousand, five hundred eighty-seven".