394715516798 has 4 divisors (see below), whose sum is σ = 592073275200. Its totient is φ = 197357758398.

The previous prime is 394715516791. The next prime is 394715516809. The reversal of 394715516798 is 897615517493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 897615517493 = 229 ⋅3919718417.

It is a super-2 number, since 2×394715516798² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394715516791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98678879198 + ... + 98678879201.

It is an arithmetic number, because the mean of its divisors is an integer number (148018318800).

Almost surely, 2^394715516798 is an apocalyptic number.

394715516798 is a deficient number, since it is larger than the sum of its proper divisors (197357758402).

394715516798 is a wasteful number, since it uses less digits than its factorization.

394715516798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197357758401.

The product of its digits is 57153600, while the sum is 65.

The spelling of 394715516798 in words is "three hundred ninety-four billion, seven hundred fifteen million, five hundred sixteen thousand, seven hundred ninety-eight".