2049366985 has 4 divisors (see below), whose sum is σ = 2459240388. Its totient is φ = 1639493584.

The previous prime is 2049366959. The next prime is 2049366997. The reversal of 2049366985 is 5896639402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 706071184 + 1343295801 = 26572^2 + 36651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2049366985 is a prime.

It is a Duffinian number.

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, 204936694 + ... + 204936703.

It is an arithmetic number, because the mean of its divisors is an integer number (614810097).

Almost surely, 2^2049366985 is an apocalyptic number.

It is an amenable number.

2049366985 is a deficient number, since it is larger than the sum of its proper divisors (409873403).

2049366985 is an equidigital number, since it uses as much as digits as its factorization.

2049366985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409873402.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The square root of 2049366985 is about 45269.9346697121. The cubic root of 2049366985 is about 1270.2033247530.

It can be divided in two parts, 20493 and 66985, that added together give a palindrome (87478).

The spelling of 2049366985 in words is "two billion, forty-nine million, three hundred sixty-six thousand, nine hundred eighty-five".