13146738485 has 4 divisors (see below), whose sum is σ = 15776086188. Its totient is φ = 10517390784.

The previous prime is 13146738467. The next prime is 13146738487. The reversal of 13146738485 is 58483764131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3100485124 + 10046253361 = 55682^2 + 100231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13146738485 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13146738487) 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, 1314673844 + ... + 1314673853.

It is an arithmetic number, because the mean of its divisors is an integer number (3944021547).

Almost surely, 2^13146738485 is an apocalyptic number.

It is an amenable number.

13146738485 is a deficient number, since it is larger than the sum of its proper divisors (2629347703).

13146738485 is an equidigital number, since it uses as much as digits as its factorization.

13146738485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629347702.

The product of its digits is 1935360, while the sum is 50.

The spelling of 13146738485 in words is "thirteen billion, one hundred forty-six million, seven hundred thirty-eight thousand, four hundred eighty-five".