187518813252 has 12 divisors (see below), whose sum is σ = 437543897616. Its totient is φ = 62506271080.

The previous prime is 187518813241. The next prime is 187518813269. The reversal of 187518813252 is 252318815781.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 187518813195 and 187518813204.

It is an unprimeable number.

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, 7813283874 + ... + 7813283897.

It is an arithmetic number, because the mean of its divisors is an integer number (36461991468).

Almost surely, 2^187518813252 is an apocalyptic number.

187518813252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

187518813252 is an abundant number, since it is smaller than the sum of its proper divisors (250025084364).

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

187518813252 is a wasteful number, since it uses less digits than its factorization.

187518813252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15626567778 (or 15626567776 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 51.

The spelling of 187518813252 in words is "one hundred eighty-seven billion, five hundred eighteen million, eight hundred thirteen thousand, two hundred fifty-two".