248656890187 has 4 divisors (see below), whose sum is σ = 248708839176. Its totient is φ = 248604941200.

The previous prime is 248656890149. The next prime is 248656890203. The reversal of 248656890187 is 781098656842.

It is a happy number.

248656890187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248656890187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248656890127) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25967314 + ... + 25976887.

It is an arithmetic number, because the mean of its divisors is an integer number (62177209794).

Almost surely, 2^248656890187 is an apocalyptic number.

248656890187 is a deficient number, since it is larger than the sum of its proper divisors (51948989).

248656890187 is an equidigital number, since it uses as much as digits as its factorization.

248656890187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51948988.

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 248656890187 in words is "two hundred forty-eight billion, six hundred fifty-six million, eight hundred ninety thousand, one hundred eighty-seven".