2489773856 has 24 divisors (see below), whose sum is σ = 4906790784. Its totient is φ = 1243604800.

The previous prime is 2489773849. The next prime is 2489773873. The reversal of 2489773856 is 6583779842.

It is a happy number.

It is a super-2 number, since 2×2489773856² = 12397947708042217472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2489773795 and 2489773804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8120 + ... + 71031.

It is an arithmetic number, because the mean of its divisors is an integer number (204449616).

Almost surely, 2^2489773856 is an apocalyptic number.

It is an amenable number.

2489773856 is a deficient number, since it is larger than the sum of its proper divisors (2417016928).

2489773856 is an equidigital number, since it uses as much as digits as its factorization.

2489773856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80144 (or 80136 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 59.

The square root of 2489773856 is about 49897.6337715527. The cubic root of 2489773856 is about 1355.3557443413.

The spelling of 2489773856 in words is "two billion, four hundred eighty-nine million, seven hundred seventy-three thousand, eight hundred fifty-six".