244644664007 has 4 divisors (see below), whose sum is σ = 244671239040. Its totient is φ = 244618088976.

The previous prime is 244644663997. The next prime is 244644664027. The reversal of 244644664007 is 700466446442.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 244644664007 - 2¹² = 244644659911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244644664027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13273703 + ... + 13292120.

It is an arithmetic number, because the mean of its divisors is an integer number (61167809760).

Almost surely, 2^244644664007 is an apocalyptic number.

244644664007 is a deficient number, since it is larger than the sum of its proper divisors (26575033).

244644664007 is an equidigital number, since it uses as much as digits as its factorization.

244644664007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26575032.

The product of its (nonzero) digits is 3096576, while the sum is 47.

The spelling of 244644664007 in words is "two hundred forty-four billion, six hundred forty-four million, six hundred sixty-four thousand, seven".