249111304027 has 4 divisors (see below), whose sum is σ = 257147152576. Its totient is φ = 241075455480.

The previous prime is 249111304019. The next prime is 249111304069. The reversal of 249111304027 is 720403111942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 249111304027 - 2³ = 249111304019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249111303983 and 249111304001.

It is not an unprimeable number, because it can be changed into a prime (249111304627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4017924228 + ... + 4017924289.

It is an arithmetic number, because the mean of its divisors is an integer number (64286788144).

Almost surely, 2^249111304027 is an apocalyptic number.

249111304027 is a deficient number, since it is larger than the sum of its proper divisors (8035848549).

249111304027 is an equidigital number, since it uses as much as digits as its factorization.

249111304027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8035848548.

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 249111304027 its reverse (720403111942), we get a palindrome (969514415969).

The spelling of 249111304027 in words is "two hundred forty-nine billion, one hundred eleven million, three hundred four thousand, twenty-seven".