129448112593 has 4 divisors (see below), whose sum is σ = 129448957348. Its totient is φ = 129447267840.

The previous prime is 129448112543. The next prime is 129448112623. The reversal of 129448112593 is 395211844921.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 54225176769 + 75222935824 = 232863^2 + 274268^2 .

It is a cyclic number.

It is not a de Polignac number, because 129448112593 - 2²¹ = 129446015441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129448112513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120696 + ... + 522937.

It is an arithmetic number, because the mean of its divisors is an integer number (32362239337).

Almost surely, 2^129448112593 is an apocalyptic number.

It is an amenable number.

129448112593 is a deficient number, since it is larger than the sum of its proper divisors (844755).

129448112593 is an equidigital number, since it uses as much as digits as its factorization.

129448112593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844754.

The product of its digits is 622080, while the sum is 49.

The spelling of 129448112593 in words is "one hundred twenty-nine billion, four hundred forty-eight million, one hundred twelve thousand, five hundred ninety-three".