16744742537 has 4 divisors (see below), whose sum is σ = 16763621376. Its totient is φ = 16725863700.

The previous prime is 16744742491. The next prime is 16744742543. The reversal of 16744742537 is 73524744761.

16744742537 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73524744761 = 13 ⋅5655749597.

It is a cyclic number.

It is not a de Polignac number, because 16744742537 - 2⁸ = 16744742281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16744742557) 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, 9438089 + ... + 9439862.

It is an arithmetic number, because the mean of its divisors is an integer number (4190905344).

Almost surely, 2^16744742537 is an apocalyptic number.

It is an amenable number.

16744742537 is a deficient number, since it is larger than the sum of its proper divisors (18878839).

16744742537 is an equidigital number, since it uses as much as digits as its factorization.

16744742537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18878838.

The product of its digits is 3951360, while the sum is 50.

The spelling of 16744742537 in words is "sixteen billion, seven hundred forty-four million, seven hundred forty-two thousand, five hundred thirty-seven".