171053035438 has 4 divisors (see below), whose sum is σ = 256579553160. Its totient is φ = 85526517718.

The previous prime is 171053035331. The next prime is 171053035451. The reversal of 171053035438 is 834530350171.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 171053035438.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42763258858 + ... + 42763258861.

It is an arithmetic number, because the mean of its divisors is an integer number (64144888290).

Almost surely, 2^171053035438 is an apocalyptic number.

171053035438 is a deficient number, since it is larger than the sum of its proper divisors (85526517722).

171053035438 is an equidigital number, since it uses as much as digits as its factorization.

171053035438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85526517721.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 171053035438 in words is "one hundred seventy-one billion, fifty-three million, thirty-five thousand, four hundred thirty-eight".