8444172608854 has 16 divisors (see below), whose sum is σ = 12671792922096. Its totient is φ = 4220241818400.

The previous prime is 8444172608801. The next prime is 8444172608857. The reversal of 8444172608854 is 4588062714448.

It is a junction number, because it is equal to n+sod(n) for n = 8444172608792 and 8444172608801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8444172608857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131914384 + ... + 131978380.

It is an arithmetic number, because the mean of its divisors is an integer number (791987057631).

Almost surely, 2^{8444172608854} is an apocalyptic number.

8444172608854 is a deficient number, since it is larger than the sum of its proper divisors (4227620313242).

8444172608854 is a wasteful number, since it uses less digits than its factorization.

8444172608854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91791.

The product of its (nonzero) digits is 55050240, while the sum is 61.

The spelling of 8444172608854 in words is "eight trillion, four hundred forty-four billion, one hundred seventy-two million, six hundred eight thousand, eight hundred fifty-four".