16739813491391 has 8 divisors (see below), whose sum is σ = 17412722745600. Its totient is φ = 16073282524320.

The previous prime is 16739813491273. The next prime is 16739813491393. The reversal of 16739813491391 is 19319431893761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16739813491391 - 2²² = 16739809297087 is a prime.

It is a super-2 number, since 2×16739813491391² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16739813491393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1594566431 + ... + 1594576928.

It is an arithmetic number, because the mean of its divisors is an integer number (2176590343200).

Almost surely, 2^{16739813491391} is an apocalyptic number.

16739813491391 is a deficient number, since it is larger than the sum of its proper divisors (672909254209).

16739813491391 is a wasteful number, since it uses less digits than its factorization.

16739813491391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189143569.

The product of its digits is 26453952, while the sum is 65.

The spelling of 16739813491391 in words is "sixteen trillion, seven hundred thirty-nine billion, eight hundred thirteen million, four hundred ninety-one thousand, three hundred ninety-one".