249933332649 has 96 divisors (see below), whose sum is σ = 463398534144. Its totient is φ = 115714287360.

The previous prime is 249933332641. The next prime is 249933332653. The reversal of 249933332649 is 946233339942.

It is not a de Polignac number, because 249933332649 - 2³ = 249933332641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249933332641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2476042 + ... + 2575004.

It is an arithmetic number, because the mean of its divisors is an integer number (4827068064).

Almost surely, 2^249933332649 is an apocalyptic number.

249933332649 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

249933332649 is a deficient number, since it is larger than the sum of its proper divisors (213465201495).

249933332649 is a wasteful number, since it uses less digits than its factorization.

249933332649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99055 (or 99026 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 57.

The spelling of 249933332649 in words is "two hundred forty-nine billion, nine hundred thirty-three million, three hundred thirty-two thousand, six hundred forty-nine".