248643634887 has 6 divisors (see below), whose sum is σ = 359151917072. Its totient is φ = 165762423252.

The previous prime is 248643634849. The next prime is 248643634901. The reversal of 248643634887 is 788436346842.

It is a happy number.

248643634887 is a `hidden beast` number, since 2 + 4 + 86 + 436 + 3 + 48 + 87 = 666.

248643634887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 248643634887 - 2¹⁰ = 248643633863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248643630887) 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 5 ways as a sum of consecutive naturals, for example, 13813535263 + ... + 13813535280.

Almost surely, 2^248643634887 is an apocalyptic number.

248643634887 is a deficient number, since it is larger than the sum of its proper divisors (110508282185).

248643634887 is a wasteful number, since it uses less digits than its factorization.

248643634887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27627070549 (or 27627070546 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 63.

The spelling of 248643634887 in words is "two hundred forty-eight billion, six hundred forty-three million, six hundred thirty-four thousand, eight hundred eighty-seven".