12599372173 has 2 divisors, whose sum is σ = 12599372174. Its totient is φ = 12599372172.

The previous prime is 12599372113. The next prime is 12599372213. The reversal of 12599372173 is 37127399521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12583903684 + 15468489 = 112178^2 + 3933^2 .

It is a cyclic number.

It is not a de Polignac number, because 12599372173 - 2²¹ = 12597275021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12599372113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6299686086 + 6299686087.

It is an arithmetic number, because the mean of its divisors is an integer number (6299686087).

Almost surely, 2^12599372173 is an apocalyptic number.

It is an amenable number.

12599372173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12599372173 is an equidigital number, since it uses as much as digits as its factorization.

12599372173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 714420, while the sum is 49.

The spelling of 12599372173 in words is "twelve billion, five hundred ninety-nine million, three hundred seventy-two thousand, one hundred seventy-three".