16138793513 has 4 divisors (see below), whose sum is σ = 16140307908. Its totient is φ = 16137279120.

The previous prime is 16138793501. The next prime is 16138793557. The reversal of 16138793513 is 31539783161.

16138793513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 6016018969 + 10122774544 = 77563^2 + 100612^2 .

It is a cyclic number.

It is not a de Polignac number, because 16138793513 - 2¹² = 16138789417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16138793563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741098 + ... + 762563.

It is an arithmetic number, because the mean of its divisors is an integer number (4035076977).

Almost surely, 2^16138793513 is an apocalyptic number.

It is an amenable number.

16138793513 is a deficient number, since it is larger than the sum of its proper divisors (1514395).

16138793513 is a wasteful number, since it uses less digits than its factorization.

16138793513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514394.

The product of its digits is 408240, while the sum is 47.

The spelling of 16138793513 in words is "sixteen billion, one hundred thirty-eight million, seven hundred ninety-three thousand, five hundred thirteen".