12539385955 has 8 divisors (see below), whose sum is σ = 15070310352. Its totient is φ = 10016143968.

The previous prime is 12539385917. The next prime is 12539385967. The reversal of 12539385955 is 55958393521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12539385955 - 2¹⁹ = 12538861667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12539385896 and 12539385905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1917009 + ... + 1923538.

It is an arithmetic number, because the mean of its divisors is an integer number (1883788794).

Almost surely, 2^12539385955 is an apocalyptic number.

12539385955 is a deficient number, since it is larger than the sum of its proper divisors (2530924397).

12539385955 is an equidigital number, since it uses as much as digits as its factorization.

12539385955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841205.

The product of its digits is 7290000, while the sum is 55.

The spelling of 12539385955 in words is "twelve billion, five hundred thirty-nine million, three hundred eighty-five thousand, nine hundred fifty-five".