249113522873 has 2 divisors, whose sum is σ = 249113522874. Its totient is φ = 249113522872.

The previous prime is 249113522869. The next prime is 249113522989. The reversal of 249113522873 is 378225311942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165121947904 + 83991574969 = 406352^2 + 289813^2 .

It is a cyclic number.

It is not a de Polignac number, because 249113522873 - 2² = 249113522869 is a prime.

It is not a weakly prime, because it can be changed into another prime (249113512873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124556761436 + 124556761437.

It is an arithmetic number, because the mean of its divisors is an integer number (124556761437).

Almost surely, 2^249113522873 is an apocalyptic number.

It is an amenable number.

249113522873 is a deficient number, since it is larger than the sum of its proper divisors (1).

249113522873 is an equidigital number, since it uses as much as digits as its factorization.

249113522873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The spelling of 249113522873 in words is "two hundred forty-nine billion, one hundred thirteen million, five hundred twenty-two thousand, eight hundred seventy-three".