171896754920 has 128 divisors (see below), whose sum is σ = 429197408640. Its totient is φ = 61438755840.

The previous prime is 171896754833. The next prime is 171896754971. The reversal of 171896754920 is 29457698171.

171896754920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 171896754920.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7182494 + ... + 7206386.

It is an arithmetic number, because the mean of its divisors is an integer number (3353104755).

Almost surely, 2^171896754920 is an apocalyptic number.

171896754920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171896754920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214598704320).

171896754920 is an abundant number, since it is smaller than the sum of its proper divisors (257300653720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171896754920 is a wasteful number, since it uses less digits than its factorization.

171896754920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24195 (or 24191 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 59.

The spelling of 171896754920 in words is "one hundred seventy-one billion, eight hundred ninety-six million, seven hundred fifty-four thousand, nine hundred twenty".