2049640564199 has 4 divisors (see below), whose sum is σ = 2049672936480. Its totient is φ = 2049608191920.

The previous prime is 2049640564189. The next prime is 2049640564241. The reversal of 2049640564199 is 9914650469402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2049640564199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049640564109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16090982 + ... + 16217859.

It is an arithmetic number, because the mean of its divisors is an integer number (512418234120).

Almost surely, 2^{2049640564199} is an apocalyptic number.

2049640564199 is a deficient number, since it is larger than the sum of its proper divisors (32372281).

2049640564199 is an equidigital number, since it uses as much as digits as its factorization.

2049640564199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32372280.

The product of its (nonzero) digits is 16796160, while the sum is 59.

The spelling of 2049640564199 in words is "two trillion, forty-nine billion, six hundred forty million, five hundred sixty-four thousand, one hundred ninety-nine".