187722082145 has 32 divisors (see below), whose sum is σ = 243291226752. Its totient is φ = 138228152832.

The previous prime is 187722082127. The next prime is 187722082151. The reversal of 187722082145 is 541280227781.

It is a cyclic number.

It is not a de Polignac number, because 187722082145 - 2⁸ = 187722081889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 187722082145.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36712109 + ... + 36717221.

It is an arithmetic number, because the mean of its divisors is an integer number (7602850836).

Almost surely, 2^187722082145 is an apocalyptic number.

It is an amenable number.

187722082145 is a deficient number, since it is larger than the sum of its proper divisors (55569144607).

187722082145 is a wasteful number, since it uses less digits than its factorization.

187722082145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641.

The product of its (nonzero) digits is 501760, while the sum is 47.

The spelling of 187722082145 in words is "one hundred eighty-seven billion, seven hundred twenty-two million, eighty-two thousand, one hundred forty-five".