171355949339 has 8 divisors (see below), whose sum is σ = 176890331520. Its totient is φ = 165821990400.

The previous prime is 171355949329. The next prime is 171355949351. The reversal of 171355949339 is 933949553171.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171355949339 is a prime.

It is a super-2 number, since 2×171355949339² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171355949329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855869 + ... + 1036929.

It is an arithmetic number, because the mean of its divisors is an integer number (22111291440).

Almost surely, 2^171355949339 is an apocalyptic number.

171355949339 is a deficient number, since it is larger than the sum of its proper divisors (5534382181).

171355949339 is a wasteful number, since it uses less digits than its factorization.

171355949339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211621.

The product of its digits is 13778100, while the sum is 59.

The spelling of 171355949339 in words is "one hundred seventy-one billion, three hundred fifty-five million, nine hundred forty-nine thousand, three hundred thirty-nine".