7908448985 has 8 divisors (see below), whose sum is σ = 9559410696. Its totient is φ = 6280577920.

The previous prime is 7908448979. The next prime is 7908448991. The reversal of 7908448985 is 5898448097.

It is an interprime number because it is at equal distance from previous prime (7908448979) and next prime (7908448991).

It can be written as a sum of positive squares in 4 ways, for example, as 955057216 + 6953391769 = 30904^2 + 83387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7908448985 - 2⁴ = 7908448969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5771906 + ... + 5773275.

It is an arithmetic number, because the mean of its divisors is an integer number (1194926337).

Almost surely, 2^7908448985 is an apocalyptic number.

It is an amenable number.

7908448985 is a deficient number, since it is larger than the sum of its proper divisors (1650961711).

7908448985 is a wasteful number, since it uses less digits than its factorization.

7908448985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11545323.

The product of its (nonzero) digits is 23224320, while the sum is 62.

The square root of 7908448985 is about 88929.4607259034. The cubic root of 7908448985 is about 1992.3414595624.

The spelling of 7908448985 in words is "seven billion, nine hundred eight million, four hundred forty-eight thousand, nine hundred eighty-five".