444478056037 has 4 divisors (see below), whose sum is σ = 446781051340. Its totient is φ = 442175060736.

The previous prime is 444478055977. The next prime is 444478056163. The reversal of 444478056037 is 730650874444.

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

It can be written as a sum of positive squares in 2 ways, for example, as 310526448001 + 133951608036 = 557249^2 + 365994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444478056037 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 (444448056037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151497362 + ... + 1151497747.

It is an arithmetic number, because the mean of its divisors is an integer number (111695262835).

Almost surely, 2^444478056037 is an apocalyptic number.

It is an amenable number.

444478056037 is a deficient number, since it is larger than the sum of its proper divisors (2302995303).

444478056037 is a wasteful number, since it uses less digits than its factorization.

444478056037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302995302.

The product of its (nonzero) digits is 9031680, while the sum is 52.

The spelling of 444478056037 in words is "four hundred forty-four billion, four hundred seventy-eight million, fifty-six thousand, thirty-seven".