249158268916 has 12 divisors (see below), whose sum is σ = 447811483588. Its totient is φ = 121212130752.

The previous prime is 249158268893. The next prime is 249158268941. The reversal of 249158268916 is 619862851942.

It can be written as a sum of positive squares in 2 ways, for example, as 172595378916 + 76562890000 = 415446^2 + 276700^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841750761 + ... + 841751056.

Almost surely, 2^249158268916 is an apocalyptic number.

It is an amenable number.

249158268916 is a deficient number, since it is larger than the sum of its proper divisors (198653214672).

249158268916 is a wasteful number, since it uses less digits than its factorization.

249158268916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683501858 (or 1683501856 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 61.

The spelling of 249158268916 in words is "two hundred forty-nine billion, one hundred fifty-eight million, two hundred sixty-eight thousand, nine hundred sixteen".