2643652433626 has 16 divisors (see below), whose sum is σ = 3967306234920. Its totient is φ = 1321217130240.

The previous prime is 2643652433623. The next prime is 2643652433633. The reversal of 2643652433626 is 6263342563462.

It can be written as a sum of positive squares in 4 ways, for example, as 2596432709025 + 47219724601 = 1611345^2 + 217301^2 .

It is not an unprimeable number, because it can be changed into a prime (2643652433621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66771156 + ... + 66810736.

Almost surely, 2^{2643652433626} is an apocalyptic number.

2643652433626 is a deficient number, since it is larger than the sum of its proper divisors (1323653801294).

2643652433626 is a wasteful number, since it uses less digits than its factorization.

2643652433626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54129.

The product of its digits is 22394880, while the sum is 52.

The spelling of 2643652433626 in words is "two trillion, six hundred forty-three billion, six hundred fifty-two million, four hundred thirty-three thousand, six hundred twenty-six".