994512479517 has 12 divisors (see below), whose sum is σ = 1436787965184. Its totient is φ = 662883732360.

The previous prime is 994512479509. The next prime is 994512479551. The reversal of 994512479517 is 715974215499.

994512479517 is a `hidden beast` number, since 9 + 9 + 45 + 1 + 2 + 4 + 79 + 517 = 666.

It is not a de Polignac number, because 994512479517 - 2³ = 994512479509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994512479567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10331709 + ... + 10427522.

It is an arithmetic number, because the mean of its divisors is an integer number (119732330432).

Almost surely, 2^994512479517 is an apocalyptic number.

It is an amenable number.

994512479517 is a deficient number, since it is larger than the sum of its proper divisors (442275485667).

994512479517 is a wasteful number, since it uses less digits than its factorization.

994512479517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20764560 (or 20764557 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 63.

The spelling of 994512479517 in words is "nine hundred ninety-four billion, five hundred twelve million, four hundred seventy-nine thousand, five hundred seventeen".