994171929419 has 4 divisors (see below), whose sum is σ = 994877517720. Its totient is φ = 993466341120.

The previous prime is 994171929379. The next prime is 994171929451. The reversal of 994171929419 is 914929171499.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994171929419 is a prime.

It is a super-2 number, since 2×994171929419² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (994171529419) 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, 352792037 + ... + 352794854.

It is an arithmetic number, because the mean of its divisors is an integer number (248719379430).

Almost surely, 2^994171929419 is an apocalyptic number.

994171929419 is a deficient number, since it is larger than the sum of its proper divisors (705588301).

994171929419 is a wasteful number, since it uses less digits than its factorization.

994171929419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705588300.

The product of its digits is 13226976, while the sum is 65.

The spelling of 994171929419 in words is "nine hundred ninety-four billion, one hundred seventy-one million, nine hundred twenty-nine thousand, four hundred nineteen".