190671906717 has 20 divisors (see below), whose sum is σ = 284861905020. Its totient is φ = 127100755584.

The previous prime is 190671906683. The next prime is 190671906779. The reversal of 190671906717 is 717609176091.

It can be written as a sum of positive squares in 2 ways, for example, as 52015468761 + 138656437956 = 228069^2 + 372366^2 .

It is not a de Polignac number, because 190671906717 - 2⁷ = 190671906589 is a prime.

It is a super-2 number, since 2×190671906717² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190671905717) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 648709 + ... + 895637.

It is an arithmetic number, because the mean of its divisors is an integer number (14243095251).

Almost surely, 2^190671906717 is an apocalyptic number.

It is an amenable number.

190671906717 is a deficient number, since it is larger than the sum of its proper divisors (94189998303).

190671906717 is an equidigital number, since it uses as much as digits as its factorization.

190671906717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256474 (or 256465 counting only the distinct ones).

The product of its (nonzero) digits is 1000188, while the sum is 54.

The spelling of 190671906717 in words is "one hundred ninety billion, six hundred seventy-one million, nine hundred six thousand, seven hundred seventeen".