187327225990 has 16 divisors (see below), whose sum is σ = 341251526448. Its totient is φ = 74028108256.

The previous prime is 187327225949. The next prime is 187327226003. The reversal of 187327225990 is 99522723781.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 112846897 + ... + 112848556.

It is an arithmetic number, because the mean of its divisors is an integer number (21328220403).

Almost surely, 2^187327225990 is an apocalyptic number.

187327225990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

187327225990 is a deficient number, since it is larger than the sum of its proper divisors (153924300458).

187327225990 is a wasteful number, since it uses less digits than its factorization.

187327225990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225695543.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 187327225990 in words is "one hundred eighty-seven billion, three hundred twenty-seven million, two hundred twenty-five thousand, nine hundred ninety".