191706134005 has 64 divisors (see below), whose sum is σ = 250203479040. Its totient is φ = 140675318784.

The previous prime is 191706133991. The next prime is 191706134023. The reversal of 191706134005 is 500431607191.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 191706134005 - 2⁵ = 191706133973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 170708374 + ... + 170709496.

It is an arithmetic number, because the mean of its divisors is an integer number (3909429360).

Almost surely, 2^191706134005 is an apocalyptic number.

It is an amenable number.

191706134005 is a deficient number, since it is larger than the sum of its proper divisors (58497345035).

191706134005 is a wasteful number, since it uses less digits than its factorization.

191706134005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 191706134005 in words is "one hundred ninety-one billion, seven hundred six million, one hundred thirty-four thousand, five".