1044645268326 has 64 divisors (see below), whose sum is σ = 2349689319936. Its totient is φ = 306870969600.

The previous prime is 1044645268321. The next prime is 1044645268361. The reversal of 1044645268326 is 6238625464401.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044645268321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 804610 + ... + 1654293.

It is an arithmetic number, because the mean of its divisors is an integer number (36713895624).

Almost surely, 2^{1044645268326} is an apocalyptic number.

1044645268326 is an abundant number, since it is smaller than the sum of its proper divisors (1305044051610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1044645268326 is a wasteful number, since it uses less digits than its factorization.

1044645268326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459117.

The product of its (nonzero) digits is 6635520, while the sum is 51.

The spelling of 1044645268326 in words is "one trillion, forty-four billion, six hundred forty-five million, two hundred sixty-eight thousand, three hundred twenty-six".