19706460791 has 4 divisors (see below), whose sum is σ = 19712275584. Its totient is φ = 19700646000.

The previous prime is 19706460779. The next prime is 19706460833.

19706460791 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19706460791 - 2⁶ = 19706460727 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 (19706460701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2902310 + ... + 2909091.

It is an arithmetic number, because the mean of its divisors is an integer number (4928068896).

Almost surely, 2^19706460791 is an apocalyptic number.

19706460791 is a deficient number, since it is larger than the sum of its proper divisors (5814793).

19706460791 is an equidigital number, since it uses as much as digits as its factorization.

19706460791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5814792.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 19706460791 in words is "nineteen billion, seven hundred six million, four hundred sixty thousand, seven hundred ninety-one".