9449257879 has 2 divisors, whose sum is σ = 9449257880. Its totient is φ = 9449257878.

The previous prime is 9449257871. The next prime is 9449257907. The reversal of 9449257879 is 9787529449.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9449257879 - 2³ = 9449257871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9449257879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9449257871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4724628939 + 4724628940.

It is an arithmetic number, because the mean of its divisors is an integer number (4724628940).

Almost surely, 2^9449257879 is an apocalyptic number.

9449257879 is a deficient number, since it is larger than the sum of its proper divisors (1).

9449257879 is an equidigital number, since it uses as much as digits as its factorization.

9449257879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 64.

The square root of 9449257879 is about 97207.2933426294. The cubic root of 9449257879 is about 2114.1342748015.

The spelling of 9449257879 in words is "nine billion, four hundred forty-nine million, two hundred fifty-seven thousand, eight hundred seventy-nine".