2644321000923 has 80 divisors (see below), whose sum is σ = 4712082439680. Its totient is φ = 1444933759104.

The previous prime is 2644321000921. The next prime is 2644321000931. The reversal of 2644321000923 is 3290001234462.

2644321000923 is a `hidden beast` number, since 2 + 644 + 3 + 2 + 1 + 0 + 0 + 0 + 9 + 2 + 3 = 666.

It is not a de Polignac number, because 2644321000923 - 2¹ = 2644321000921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2644321000921) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 49255111 + ... + 49308767.

It is an arithmetic number, because the mean of its divisors is an integer number (58901030496).

Almost surely, 2^{2644321000923} is an apocalyptic number.

2644321000923 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2644321000923 is a deficient number, since it is larger than the sum of its proper divisors (2067761438757).

2644321000923 is a wasteful number, since it uses less digits than its factorization.

2644321000923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57478 (or 57469 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 2644321000923 in words is "two trillion, six hundred forty-four billion, three hundred twenty-one million, nine hundred twenty-three", and thus it is an aban number.