2643553364 has 12 divisors (see below), whose sum is σ = 4639948404. Its totient is φ = 1317853824.

The previous prime is 2643553357. The next prime is 2643553421. The reversal of 2643553364 is 4633553462.

It can be written as a sum of positive squares in 2 ways, for example, as 867773764 + 1775779600 = 29458^2 + 42140^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979199 + ... + 981894.

It is an arithmetic number, because the mean of its divisors is an integer number (386662367).

Almost surely, 2^2643553364 is an apocalyptic number.

It is an amenable number.

2643553364 is a deficient number, since it is larger than the sum of its proper divisors (1996395040).

2643553364 is a wasteful number, since it uses less digits than its factorization.

2643553364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961434 (or 1961432 counting only the distinct ones).

The product of its digits is 777600, while the sum is 41.

The square root of 2643553364 is about 51415.4973135532. The cubic root of 2643553364 is about 1382.7044500546.

The spelling of 2643553364 in words is "two billion, six hundred forty-three million, five hundred fifty-three thousand, three hundred sixty-four".