172701043257 has 16 divisors (see below), whose sum is σ = 230984716032. Its totient is φ = 114775853520.

The previous prime is 172701043243. The next prime is 172701043259. The reversal of 172701043257 is 752340107271.

It is not a de Polignac number, because 172701043257 - 2⁷ = 172701043129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172701043259) 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 15 ways as a sum of consecutive naturals, for example, 5199898 + ... + 5233004.

It is an arithmetic number, because the mean of its divisors is an integer number (14436544752).

Almost surely, 2^172701043257 is an apocalyptic number.

It is an amenable number.

172701043257 is a deficient number, since it is larger than the sum of its proper divisors (58283672775).

172701043257 is a wasteful number, since it uses less digits than its factorization.

172701043257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38468.

The product of its (nonzero) digits is 82320, while the sum is 39.

The spelling of 172701043257 in words is "one hundred seventy-two billion, seven hundred one million, forty-three thousand, two hundred fifty-seven".