195928521252 has 24 divisors (see below), whose sum is σ = 457559674656. Its totient is φ = 65253346368.

The previous prime is 195928521241. The next prime is 195928521263. The reversal of 195928521252 is 252125829591.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (195928521241) and next prime (195928521263).

It is a junction number, because it is equal to n+sod(n) for n = 195928521195 and 195928521204.

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 in 7 ways as a sum of consecutive naturals, for example, 7005553 + ... + 7033464.

It is an arithmetic number, because the mean of its divisors is an integer number (19064986444).

Almost surely, 2^195928521252 is an apocalyptic number.

195928521252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

195928521252 is an abundant number, since it is smaller than the sum of its proper divisors (261631153404).

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

195928521252 is a wasteful number, since it uses less digits than its factorization.

195928521252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14040187 (or 14040185 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 51.

The spelling of 195928521252 in words is "one hundred ninety-five billion, nine hundred twenty-eight million, five hundred twenty-one thousand, two hundred fifty-two".