444631220620147 has 16 divisors (see below), whose sum is σ = 487672095674880. Its totient is φ = 402030623743200.

The previous prime is 444631220620117. The next prime is 444631220620177. The reversal of 444631220620147 is 741026022136444.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (444631220620117) and next prime (444631220620177).

It is a cyclic number.

It is not a de Polignac number, because 444631220620147 - 2⁷ = 444631220620019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444631220620097 and 444631220620106.

It is not an unprimeable number, because it can be changed into a prime (444631220620117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88445403 + ... + 93337300.

It is an arithmetic number, because the mean of its divisors is an integer number (30479505979680).

Almost surely, 2^{444631220620147} is an apocalyptic number.

444631220620147 is a deficient number, since it is larger than the sum of its proper divisors (43040875054733).

444631220620147 is a wasteful number, since it uses less digits than its factorization.

444631220620147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181783914.

The product of its (nonzero) digits is 1548288, while the sum is 46.

The spelling of 444631220620147 in words is "four hundred forty-four trillion, six hundred thirty-one billion, two hundred twenty million, six hundred twenty thousand, one hundred forty-seven".