171320407479 has 24 divisors (see below), whose sum is σ = 276368728272. Its totient is φ = 105427941120.

The previous prime is 171320407439. The next prime is 171320407483. The reversal of 171320407479 is 974704023171.

171320407479 is a `hidden beast` number, since 1 + 7 + 132 + 0 + 40 + 7 + 479 = 666.

It is not a de Polignac number, because 171320407479 - 2⁷ = 171320407351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171320407429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27113082 + ... + 27119399.

It is an arithmetic number, because the mean of its divisors is an integer number (11515363678).

Almost surely, 2^171320407479 is an apocalyptic number.

171320407479 is a deficient number, since it is larger than the sum of its proper divisors (105048320793).

171320407479 is an equidigital number, since it uses as much as digits as its factorization.

171320407479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54232509 (or 54232497 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The spelling of 171320407479 in words is "one hundred seventy-one billion, three hundred twenty million, four hundred seven thousand, four hundred seventy-nine".