172705241042 has 8 divisors (see below), whose sum is σ = 274296559356. Its totient is φ = 81273054592.

The previous prime is 172705241003. The next prime is 172705241047. The reversal of 172705241042 is 240142507271.

It can be written as a sum of positive squares in 2 ways, for example, as 151851281761 + 20853959281 = 389681^2 + 144409^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 172705240993 and 172705241011.

It is not an unprimeable number, because it can be changed into a prime (172705241047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2539782923 + ... + 2539782990.

Almost surely, 2^172705241042 is an apocalyptic number.

172705241042 is a deficient number, since it is larger than the sum of its proper divisors (101591318314).

172705241042 is a wasteful number, since it uses less digits than its factorization.

172705241042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079565932.

The product of its (nonzero) digits is 31360, while the sum is 35.

The spelling of 172705241042 in words is "one hundred seventy-two billion, seven hundred five million, two hundred forty-one thousand, forty-two".