444650554618678 has 4 divisors (see below), whose sum is σ = 666975831928020. Its totient is φ = 222325277309338.

The previous prime is 444650554618663. The next prime is 444650554618693. The reversal of 444650554618678 is 876816455056444.

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

It is an interprime number because it is at equal distance from previous prime (444650554618663) and next prime (444650554618693).

It is a self number, because there is not a number n which added to its sum of digits gives 444650554618678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111162638654668 + ... + 111162638654671.

It is an arithmetic number, because the mean of its divisors is an integer number (166743957982005).

Almost surely, 2^{444650554618678} is an apocalyptic number.

444650554618678 is a deficient number, since it is larger than the sum of its proper divisors (222325277309342).

444650554618678 is a wasteful number, since it uses less digits than its factorization.

444650554618678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222325277309341.

The product of its (nonzero) digits is 3096576000, while the sum is 73.

The spelling of 444650554618678 in words is "four hundred forty-four trillion, six hundred fifty billion, five hundred fifty-four million, six hundred eighteen thousand, six hundred seventy-eight".