1649162886 has 32 divisors (see below), whose sum is σ = 3775403520. Its totient is φ = 470453376.

The previous prime is 1649162869. The next prime is 1649162887. The reversal of 1649162886 is 6882619461.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649162887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3171 + ... + 57518.

It is an arithmetic number, because the mean of its divisors is an integer number (117981360).

Almost surely, 2^1649162886 is an apocalyptic number.

1649162886 is an abundant number, since it is smaller than the sum of its proper divisors (2126240634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1649162886 is a wasteful number, since it uses less digits than its factorization.

1649162886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61348.

The product of its digits is 995328, while the sum is 51.

The square root of 1649162886 is about 40609.8865548772. The cubic root of 1649162886 is about 1181.4658805128.

The spelling of 1649162886 in words is "one billion, six hundred forty-nine million, one hundred sixty-two thousand, eight hundred eighty-six".