2645613436 has 6 divisors (see below), whose sum is σ = 4629823520. Its totient is φ = 1322806716.

The previous prime is 2645613379. The next prime is 2645613449. The reversal of 2645613436 is 6343165462.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330701676 + ... + 330701683.

Almost surely, 2^2645613436 is an apocalyptic number.

It is an amenable number.

2645613436 is a deficient number, since it is larger than the sum of its proper divisors (1984210084).

2645613436 is a wasteful number, since it uses less digits than its factorization.

2645613436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661403363 (or 661403361 counting only the distinct ones).

The product of its digits is 311040, while the sum is 40.

The square root of 2645613436 is about 51435.5269828161. The cubic root of 2645613436 is about 1383.0635287554.

Adding to 2645613436 its reverse (6343165462), we get a palindrome (8988778898).

The spelling of 2645613436 in words is "two billion, six hundred forty-five million, six hundred thirteen thousand, four hundred thirty-six".