187730071056 has 120 divisors (see below), whose sum is σ = 573401154144. Its totient is φ = 56862535680.

The previous prime is 187730071019. The next prime is 187730071063. The reversal of 187730071056 is 650170037781.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3692400 + ... + 3742896.

Almost surely, 2^187730071056 is an apocalyptic number.

187730071056 is a gapful number since it is divisible by the number (16) 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 187730071056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286700577072).

187730071056 is an abundant number, since it is smaller than the sum of its proper divisors (385671083088).

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

187730071056 is a wasteful number, since it uses less digits than its factorization.

187730071056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52869 (or 52860 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The spelling of 187730071056 in words is "one hundred eighty-seven billion, seven hundred thirty million, seventy-one thousand, fifty-six".