249281328407 has 2 divisors, whose sum is σ = 249281328408. Its totient is φ = 249281328406.

The previous prime is 249281328383. The next prime is 249281328427. The reversal of 249281328407 is 704823182942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249281328407 - 2⁶ = 249281328343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249281328427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124640664203 + 124640664204.

It is an arithmetic number, because the mean of its divisors is an integer number (124640664204).

Almost surely, 2^249281328407 is an apocalyptic number.

249281328407 is a deficient number, since it is larger than the sum of its proper divisors (1).

249281328407 is an equidigital number, since it uses as much as digits as its factorization.

249281328407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 249281328407 in words is "two hundred forty-nine billion, two hundred eighty-one million, three hundred twenty-eight thousand, four hundred seven".