2049884657 has 8 divisors (see below), whose sum is σ = 2090249280. Its totient is φ = 2009582640.

The previous prime is 2049884609. The next prime is 2049884663. The reversal of 2049884657 is 7564889402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2049884657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2049884599 and 2049884608.

It is not an unprimeable number, because it can be changed into a prime (2049884357) 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 7 ways as a sum of consecutive naturals, for example, 53444 + ... + 83402.

It is an arithmetic number, because the mean of its divisors is an integer number (261281160).

Almost surely, 2^2049884657 is an apocalyptic number.

It is an amenable number.

2049884657 is a deficient number, since it is larger than the sum of its proper divisors (40364623).

2049884657 is a wasteful number, since it uses less digits than its factorization.

2049884657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31303.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The square root of 2049884657 is about 45275.6519224185. The cubic root of 2049884657 is about 1270.3102672614.

The spelling of 2049884657 in words is "two billion, forty-nine million, eight hundred eighty-four thousand, six hundred fifty-seven".