2643515336 has 64 divisors (see below), whose sum is σ = 6197662080. Its totient is φ = 1026938880.

The previous prime is 2643515323. The next prime is 2643515339. The reversal of 2643515336 is 6335153462.

2643515336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2643515336.

It is not an unprimeable number, because it can be changed into a prime (2643515339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211370 + ... + 223526.

It is an arithmetic number, because the mean of its divisors is an integer number (96838470).

Almost surely, 2^2643515336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2643515336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3098831040).

2643515336 is an abundant number, since it is smaller than the sum of its proper divisors (3554146744).

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

2643515336 is a wasteful number, since it uses less digits than its factorization.

2643515336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12534 (or 12530 counting only the distinct ones).

The product of its digits is 194400, while the sum is 38.

The square root of 2643515336 is about 51415.1275015437. The cubic root of 2643515336 is about 1382.6978198705.

Adding to 2643515336 its reverse (6335153462), we get a palindrome (8978668798).

The spelling of 2643515336 in words is "two billion, six hundred forty-three million, five hundred fifteen thousand, three hundred thirty-six".