187923117002 has 16 divisors (see below), whose sum is σ = 286458782472. Its totient is φ = 92443276800.

The previous prime is 187923116999. The next prime is 187923117047. The reversal of 187923117002 is 200711329781.

It is a happy number.

187923117002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 433501²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 187923117001 + 1 = 433501^2 + 1^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1546373 + ... + 1663464.

Almost surely, 2^187923117002 is an apocalyptic number.

187923117002 is a deficient number, since it is larger than the sum of its proper divisors (98535665470).

187923117002 is a wasteful number, since it uses less digits than its factorization.

187923117002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210313.

The product of its (nonzero) digits is 42336, while the sum is 41.

The spelling of 187923117002 in words is "one hundred eighty-seven billion, nine hundred twenty-three million, one hundred seventeen thousand, two".