994375217645 has 16 divisors (see below), whose sum is σ = 1245173281920. Its totient is φ = 760887192384.

The previous prime is 994375217629. The next prime is 994375217657. The reversal of 994375217645 is 546712573499.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 994375217645 - 2⁴ = 994375217629 is a prime.

It is a super-3 number, since 3×994375217645³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3653162 + ... + 3915908.

It is an arithmetic number, because the mean of its divisors is an integer number (77823330120).

Almost surely, 2^994375217645 is an apocalyptic number.

It is an amenable number.

994375217645 is a deficient number, since it is larger than the sum of its proper divisors (250798064275).

994375217645 is a wasteful number, since it uses less digits than its factorization.

994375217645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295684.

The product of its digits is 57153600, while the sum is 62.

The spelling of 994375217645 in words is "nine hundred ninety-four billion, three hundred seventy-five million, two hundred seventeen thousand, six hundred forty-five".