2446979985 has 12 divisors (see below), whose sum is σ = 4241432052. Its totient is φ = 1305055968.

The previous prime is 2446979981. The next prime is 2446980013. The reversal of 2446979985 is 5899796442.

2446979985 is a `hidden beast` number, since 2 + 4 + 469 + 7 + 99 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1822179969 + 624800016 = 42687^2 + 24996^2 .

It is not a de Polignac number, because 2446979985 - 2² = 2446979981 is a prime.

It is a super-2 number, since 2×2446979985² = 11975422093981200450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2446979981) 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 in 11 ways as a sum of consecutive naturals, for example, 27188622 + ... + 27188711.

It is an arithmetic number, because the mean of its divisors is an integer number (353452671).

Almost surely, 2^2446979985 is an apocalyptic number.

It is an amenable number.

2446979985 is a deficient number, since it is larger than the sum of its proper divisors (1794452067).

2446979985 is a wasteful number, since it uses less digits than its factorization.

2446979985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54377344 (or 54377341 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The square root of 2446979985 is about 49466.9585177824. The cubic root of 2446979985 is about 1347.5456062897.

The spelling of 2446979985 in words is "two billion, four hundred forty-six million, nine hundred seventy-nine thousand, nine hundred eighty-five".