187449522050 has 54 divisors (see below), whose sum is σ = 405625930857. Its totient is φ = 64261060080.

The previous prime is 187449522049. The next prime is 187449522079. The reversal of 187449522050 is 50225944781.

It can be written as a sum of positive squares in 2 ways, for example, as 183700531609 + 3748990441 = 428603^2 + 61229^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=306145.

It is a junction number, because it is equal to n+sod(n) for n = 187449521986 and 187449522004.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 21425777 + ... + 21434523.

Almost surely, 2^187449522050 is an apocalyptic number.

187449522050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

187449522050 is an abundant number, since it is smaller than the sum of its proper divisors (218176408807).

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

187449522050 is an frugal number, since it uses more digits than its factorization.

187449522050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17520 (or 8761 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 187449522050 in words is "one hundred eighty-seven billion, four hundred forty-nine million, five hundred twenty-two thousand, fifty".