399319996142 has 8 divisors (see below), whose sum is σ = 599024945376. Its totient is φ = 199645014352.

The previous prime is 399319996139. The next prime is 399319996183. The reversal of 399319996142 is 241699913993.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7458518 + ... + 7511865.

It is an arithmetic number, because the mean of its divisors is an integer number (74878118172).

Almost surely, 2^399319996142 is an apocalyptic number.

399319996142 is a deficient number, since it is larger than the sum of its proper divisors (199704949234).

399319996142 is a wasteful number, since it uses less digits than its factorization.

399319996142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14983722.

The product of its digits is 25509168, while the sum is 65.

The spelling of 399319996142 in words is "three hundred ninety-nine billion, three hundred nineteen million, nine hundred ninety-six thousand, one hundred forty-two".