171793948641 has 16 divisors (see below), whose sum is σ = 268856425344. Its totient is φ = 95514781824.

The previous prime is 171793948607. The next prime is 171793948661. The reversal of 171793948641 is 146849397171.

It is a happy number.

It is not a de Polignac number, because 171793948641 - 2¹⁴ = 171793932257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (171793948661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110548740 + ... + 110550293.

It is an arithmetic number, because the mean of its divisors is an integer number (16803526584).

Almost surely, 2^171793948641 is an apocalyptic number.

It is an amenable number.

171793948641 is a deficient number, since it is larger than the sum of its proper divisors (97062476703).

171793948641 is a wasteful number, since it uses less digits than its factorization.

171793948641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221099080.

The product of its digits is 9144576, while the sum is 60.

The spelling of 171793948641 in words is "one hundred seventy-one billion, seven hundred ninety-three million, nine hundred forty-eight thousand, six hundred forty-one".