249689825927 has 2 divisors, whose sum is σ = 249689825928. Its totient is φ = 249689825926.

The previous prime is 249689825921. The next prime is 249689825939. The reversal of 249689825927 is 729528986942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249689825927 - 2⁶ = 249689825863 is a prime.

It is a super-2 number, since 2×249689825927² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249689825921) 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 as a sum of consecutive naturals, namely, 124844912963 + 124844912964.

It is an arithmetic number, because the mean of its divisors is an integer number (124844912964).

Almost surely, 2^249689825927 is an apocalyptic number.

249689825927 is a deficient number, since it is larger than the sum of its proper divisors (1).

249689825927 is an equidigital number, since it uses as much as digits as its factorization.

249689825927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 313528320, while the sum is 71.

The spelling of 249689825927 in words is "two hundred forty-nine billion, six hundred eighty-nine million, eight hundred twenty-five thousand, nine hundred twenty-seven".