16741988749 has 4 divisors (see below), whose sum is σ = 17150329980. Its totient is φ = 16333647520.

The previous prime is 16741988723. The next prime is 16741988779. The reversal of 16741988749 is 94788914761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94788914761 = 72173 ⋅1313357.

It can be written as a sum of positive squares in 2 ways, for example, as 1790813124 + 14951175625 = 42318^2 + 122275^2 .

It is a cyclic number.

It is not a de Polignac number, because 16741988749 - 2⁵ = 16741988717 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 (16741988779) 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, 204170554 + ... + 204170635.

It is an arithmetic number, because the mean of its divisors is an integer number (4287582495).

Almost surely, 2^16741988749 is an apocalyptic number.

It is an amenable number.

16741988749 is a deficient number, since it is larger than the sum of its proper divisors (408341231).

16741988749 is an equidigital number, since it uses as much as digits as its factorization.

16741988749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408341230.

The product of its digits is 24385536, while the sum is 64.

The spelling of 16741988749 in words is "sixteen billion, seven hundred forty-one million, nine hundred eighty-eight thousand, seven hundred forty-nine".