16391758749 has 16 divisors (see below), whose sum is σ = 23019075072. Its totient is φ = 10355022128.

The previous prime is 16391758693. The next prime is 16391758763. The reversal of 16391758749 is 94785719361.

16391758749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16391758749 - 2¹² = 16391754653 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16391758692 and 16391758701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16391758049) 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 15 ways as a sum of consecutive naturals, for example, 1102719 + ... + 1117484.

It is an arithmetic number, because the mean of its divisors is an integer number (1438692192).

Almost surely, 2^16391758749 is an apocalyptic number.

It is an amenable number.

16391758749 is a deficient number, since it is larger than the sum of its proper divisors (6627316323).

16391758749 is a wasteful number, since it uses less digits than its factorization.

16391758749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220336.

The product of its digits is 11430720, while the sum is 60.

The spelling of 16391758749 in words is "sixteen billion, three hundred ninety-one million, seven hundred fifty-eight thousand, seven hundred forty-nine".