172852885949 has 16 divisors (see below), whose sum is σ = 176219784576. Its totient is φ = 169528632000.

The previous prime is 172852885901. The next prime is 172852885973. The reversal of 172852885949 is 949588258271.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 172852885949 - 2³² = 168557918653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172852885979) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 3874679 + ... + 3919035.

It is an arithmetic number, because the mean of its divisors is an integer number (11013736536).

Almost surely, 2^172852885949 is an apocalyptic number.

It is an amenable number.

172852885949 is a deficient number, since it is larger than the sum of its proper divisors (3366898627).

172852885949 is a wasteful number, since it uses less digits than its factorization.

172852885949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44836.

The product of its digits is 116121600, while the sum is 68.

The spelling of 172852885949 in words is "one hundred seventy-two billion, eight hundred fifty-two million, eight hundred eighty-five thousand, nine hundred forty-nine".