249140440268 has 6 divisors (see below), whose sum is σ = 435995770476. Its totient is φ = 124570220132.

The previous prime is 249140440249. The next prime is 249140440271. The reversal of 249140440268 is 862044041942.

249140440268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 31142555030 + ... + 31142555037.

It is an arithmetic number, because the mean of its divisors is an integer number (72665961746).

Almost surely, 2^249140440268 is an apocalyptic number.

It is an amenable number.

249140440268 is a deficient number, since it is larger than the sum of its proper divisors (186855330208).

249140440268 is a wasteful number, since it uses less digits than its factorization.

249140440268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62285110071 (or 62285110069 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 249140440268 in words is "two hundred forty-nine billion, one hundred forty million, four hundred forty thousand, two hundred sixty-eight".