187900960249 has 2 divisors, whose sum is σ = 187900960250. Its totient is φ = 187900960248.

The previous prime is 187900960243. The next prime is 187900960277. The reversal of 187900960249 is 942069009781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181555244649 + 6345715600 = 426093^2 + 79660^2 .

It is a cyclic number.

It is not a de Polignac number, because 187900960249 - 2⁵ = 187900960217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 187900960249.

It is not a weakly prime, because it can be changed into another prime (187900960243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93950480124 + 93950480125.

It is an arithmetic number, because the mean of its divisors is an integer number (93950480125).

Almost surely, 2^187900960249 is an apocalyptic number.

It is an amenable number.

187900960249 is a deficient number, since it is larger than the sum of its proper divisors (1).

187900960249 is an equidigital number, since it uses as much as digits as its factorization.

187900960249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 187900960249 in words is "one hundred eighty-seven billion, nine hundred million, nine hundred sixty thousand, two hundred forty-nine".