399894275728848 has 80 divisors (see below), whose sum is σ = 1033271557905600. Its totient is φ = 133270824529920.

The previous prime is 399894275728823. The next prime is 399894275728859. The reversal of 399894275728848 is 848827572498993.

It is a happy number.

It is a super-3 number, since 3×399894275728848³ (a number of 45 digits) contains 333 as substring.

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, 5517192768 + ... + 5517265248.

It is an arithmetic number, because the mean of its divisors is an integer number (12915894473820).

Almost surely, 2^{399894275728848} is an apocalyptic number.

It is an amenable number.

399894275728848 is an abundant number, since it is smaller than the sum of its proper divisors (633377282176752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

399894275728848 is a wasteful number, since it uses less digits than its factorization.

399894275728848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94420 (or 94414 counting only the distinct ones).

The product of its digits is 140460687360, while the sum is 93.

The spelling of 399894275728848 in words is "three hundred ninety-nine trillion, eight hundred ninety-four billion, two hundred seventy-five million, seven hundred twenty-eight thousand, eight hundred forty-eight".