187857474912 has 192 divisors, whose sum is σ = 562046385600. Its totient is φ = 61008629760.

The previous prime is 187857474907. The next prime is 187857474913. The reversal of 187857474912 is 219474758781.

187857474912 is a `hidden beast` number, since 1 + 8 + 7 + 8 + 574 + 7 + 49 + 12 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 187857474912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187857474913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29363298 + ... + 29369694.

It is an arithmetic number, because the mean of its divisors is an integer number (2927324925).

Almost surely, 2^187857474912 is an apocalyptic number.

187857474912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 187857474912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281023192800).

187857474912 is an abundant number, since it is smaller than the sum of its proper divisors (374188910688).

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

187857474912 is a wasteful number, since it uses less digits than its factorization.

187857474912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7286 (or 7272 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 63.

The spelling of 187857474912 in words is "one hundred eighty-seven billion, eight hundred fifty-seven million, four hundred seventy-four thousand, nine hundred twelve".