187297129060 has 96 divisors (see below), whose sum is σ = 426919483872. Its totient is φ = 68743495680.

The previous prime is 187297128973. The next prime is 187297129067. The reversal of 187297129060 is 60921792781.

It can be written as a sum of positive squares in 16 ways, for example, as 13067690596 + 174229438464 = 114314^2 + 417408^2 .

It is a junction number, because it is equal to n+sod(n) for n = 187297128989 and 187297129007.

It is not an unprimeable number, because it can be changed into a prime (187297129067) 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, 24154144 + ... + 24161896.

It is an arithmetic number, because the mean of its divisors is an integer number (4447077957).

Almost surely, 2^187297129060 is an apocalyptic number.

187297129060 is a gapful number since it is divisible by the number (10) 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 187297129060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213459741936).

187297129060 is an abundant number, since it is smaller than the sum of its proper divisors (239622354812).

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

187297129060 is a wasteful number, since it uses less digits than its factorization.

187297129060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9553 (or 9551 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 187297129060 in words is "one hundred eighty-seven billion, two hundred ninety-seven million, one hundred twenty-nine thousand, sixty".