94454638889 has 4 divisors (see below), whose sum is σ = 101720380356. Its totient is φ = 87188897424.

The previous prime is 94454638847. The next prime is 94454638891. The reversal of 94454638889 is 98883645449.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98883645449 = 1823 ⋅54242263.

It can be written as a sum of positive squares in 2 ways, for example, as 15109326400 + 79345312489 = 122920^2 + 281683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94454638889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (94454638829) 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, 3632870714 + ... + 3632870739.

It is an arithmetic number, because the mean of its divisors is an integer number (25430095089).

Almost surely, 2^94454638889 is an apocalyptic number.

It is an amenable number.

94454638889 is a deficient number, since it is larger than the sum of its proper divisors (7265741467).

94454638889 is a wasteful number, since it uses less digits than its factorization.

94454638889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7265741466.

The product of its digits is 238878720, while the sum is 68.

The spelling of 94454638889 in words is "ninety-four billion, four hundred fifty-four million, six hundred thirty-eight thousand, eight hundred eighty-nine".