994658856499 has 32 divisors (see below), whose sum is σ = 1259473121280. Its totient is φ = 762980215200.

The previous prime is 994658856419. The next prime is 994658856553.

994658856499 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 994658856499 - 2¹⁹ = 994658332211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (994658856409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3464712 + ... + 3740794.

It is an arithmetic number, because the mean of its divisors is an integer number (39358535040).

Almost surely, 2^994658856499 is an apocalyptic number.

994658856499 is a deficient number, since it is larger than the sum of its proper divisors (264814264781).

994658856499 is a wasteful number, since it uses less digits than its factorization.

994658856499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276831.

The product of its digits is 6046617600, while the sum is 82.

The spelling of 994658856499 in words is "nine hundred ninety-four billion, six hundred fifty-eight million, eight hundred fifty-six thousand, four hundred ninety-nine".