2643115140 has 36 divisors (see below), whose sum is σ = 8017449804. Its totient is φ = 704830656.

The previous prime is 2643115117. The next prime is 2643115151. The reversal of 2643115140 is 415113462.

It is a happy number.

2643115140 is a `hidden beast` number, since 2 + 643 + 1 + 1 + 5 + 14 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1962844416 + 680270724 = 44304^2 + 26082^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7341807 + ... + 7342166.

It is an arithmetic number, because the mean of its divisors is an integer number (222706939).

Almost surely, 2^2643115140 is an apocalyptic number.

2643115140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2643115140 is an abundant number, since it is smaller than the sum of its proper divisors (5374334664).

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

2643115140 is a wasteful number, since it uses less digits than its factorization.

2643115140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14683988 (or 14683983 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2643115140 is about 51411.2355424376. The cubic root of 2643115140 is about 1382.6280418171.

The spelling of 2643115140 in words is "two billion, six hundred forty-three million, one hundred fifteen thousand, one hundred forty".