444641374424013 has 64 divisors (see below), whose sum is σ = 663192811008000. Its totient is φ = 263241643306752.

The previous prime is 444641374423993. The next prime is 444641374424089. The reversal of 444641374424013 is 310424473146444.

It is not a de Polignac number, because 444641374424013 - 2²⁸ = 444641105988557 is a prime.

It is a super-2 number, since 2×444641374424013² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444641374425013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53476363 + ... + 61229111.

It is an arithmetic number, because the mean of its divisors is an integer number (10362387672000).

Almost surely, 2^{444641374424013} is an apocalyptic number.

It is an amenable number.

444641374424013 is a deficient number, since it is larger than the sum of its proper divisors (218551436583987).

444641374424013 is a wasteful number, since it uses less digits than its factorization.

444641374424013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7753346.

The product of its (nonzero) digits is 12386304, while the sum is 51.

The spelling of 444641374424013 in words is "four hundred forty-four trillion, six hundred forty-one billion, three hundred seventy-four million, four hundred twenty-four thousand, thirteen".