249823775768 has 16 divisors (see below), whose sum is σ = 535336662480. Its totient is φ = 107067332448.

The previous prime is 249823775767. The next prime is 249823775819. The reversal of 249823775768 is 867577328942.

It is a junction number, because it is equal to n+sod(n) for n = 249823775698 and 249823775707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249823775767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2230569371 + ... + 2230569482.

It is an arithmetic number, because the mean of its divisors is an integer number (33458541405).

Almost surely, 2^249823775768 is an apocalyptic number.

249823775768 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

249823775768 is an abundant number, since it is smaller than the sum of its proper divisors (285512886712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249823775768 is a wasteful number, since it uses less digits than its factorization.

249823775768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4461138866 (or 4461138862 counting only the distinct ones).

The product of its digits is 284497920, while the sum is 68.

The spelling of 249823775768 in words is "two hundred forty-nine billion, eight hundred twenty-three million, seven hundred seventy-five thousand, seven hundred sixty-eight".