394896816123 has 8 divisors (see below), whose sum is σ = 530674987008. Its totient is φ = 261191594664.

The previous prime is 394896816103. The next prime is 394896816161. The reversal of 394896816123 is 321618698493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 394896816123 - 2⁵ = 394896816091 is a prime.

It is a super-2 number, since 2×394896816123² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394896816103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518236911 + ... + 518237672.

It is an arithmetic number, because the mean of its divisors is an integer number (66334373376).

Almost surely, 2^394896816123 is an apocalyptic number.

394896816123 is a deficient number, since it is larger than the sum of its proper divisors (135778170885).

394896816123 is a wasteful number, since it uses less digits than its factorization.

394896816123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036474713.

The product of its digits is 13436928, while the sum is 60.

The spelling of 394896816123 in words is "three hundred ninety-four billion, eight hundred ninety-six million, eight hundred sixteen thousand, one hundred twenty-three".