2011644514 has 16 divisors (see below), whose sum is σ = 3292714080. Its totient is φ = 914124960.

The previous prime is 2011644511. The next prime is 2011644517. The reversal of 2011644514 is 4154461102.

It is an interprime number because it is at equal distance from previous prime (2011644511) and next prime (2011644517).

It is not an unprimeable number, because it can be changed into a prime (2011644511) 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, 81982 + ... + 103654.

It is an arithmetic number, because the mean of its divisors is an integer number (205794630).

Almost surely, 2^2011644514 is an apocalyptic number.

2011644514 is a deficient number, since it is larger than the sum of its proper divisors (1281069566).

2011644514 is a wasteful number, since it uses less digits than its factorization.

2011644514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25905.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2011644514 is about 44851.3602246353. The cubic root of 2011644514 is about 1262.3615143854.

The spelling of 2011644514 in words is "two billion, eleven million, six hundred forty-four thousand, five hundred fourteen".