2644365053632 has 14 divisors (see below), whose sum is σ = 5247411903428. Its totient is φ = 1322182526784.

The previous prime is 2644365053611. The next prime is 2644365053633. The reversal of 2644365053632 is 2363505634462.

It is not an unprimeable number, because it can be changed into a prime (2644365053633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20659101918 + ... + 20659102045.

Almost surely, 2^{2644365053632} is an apocalyptic number.

It is an amenable number.

2644365053632 is a deficient number, since it is larger than the sum of its proper divisors (2603046849796).

2644365053632 is an equidigital number, since it uses as much as digits as its factorization.

2644365053632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41318203975 (or 41318203965 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 49.

The spelling of 2644365053632 in words is "two trillion, six hundred forty-four billion, three hundred sixty-five million, fifty-three thousand, six hundred thirty-two".