13163495738 has 4 divisors (see below), whose sum is σ = 19745243610. Its totient is φ = 6581747868.

The previous prime is 13163495731. The next prime is 13163495753. The reversal of 13163495738 is 83759436131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83759436131 = 7 ⋅11965633733.

It can be written as a sum of positive squares in only one way, i.e., 8530923769 + 4632571969 = 92363^2 + 68063^2 .

It is not an unprimeable number, because it can be changed into a prime (13163495731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3290873933 + ... + 3290873936.

Almost surely, 2^13163495738 is an apocalyptic number.

13163495738 is a deficient number, since it is larger than the sum of its proper divisors (6581747872).

13163495738 is an equidigital number, since it uses as much as digits as its factorization.

13163495738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6581747871.

The product of its digits is 1632960, while the sum is 50.

The spelling of 13163495738 in words is "thirteen billion, one hundred sixty-three million, four hundred ninety-five thousand, seven hundred thirty-eight".