2643515073 has 12 divisors (see below), whose sum is σ = 3824059668. Its totient is φ = 1759736160.

The previous prime is 2643515071. The next prime is 2643515123. The reversal of 2643515073 is 3705153462.

2643515073 is a `hidden beast` number, since 2 + 6 + 435 + 150 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1308124224 + 1335390849 = 36168^2 + 36543^2 .

It is not a de Polignac number, because 2643515073 - 2¹ = 2643515071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2643515071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210838 + ... + 223023.

It is an arithmetic number, because the mean of its divisors is an integer number (318671639).

Almost surely, 2^2643515073 is an apocalyptic number.

It is an amenable number.

2643515073 is a deficient number, since it is larger than the sum of its proper divisors (1180544595).

2643515073 is a wasteful number, since it uses less digits than its factorization.

2643515073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434544 (or 434541 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 2643515073 is about 51415.1249439307. The cubic root of 2643515073 is about 1382.6977740162.

The spelling of 2643515073 in words is "two billion, six hundred forty-three million, five hundred fifteen thousand, seventy-three".