394149709504 has 28 divisors (see below), whose sum is σ = 798782130144. Its totient is φ = 192881771264.

The previous prime is 394149709483. The next prime is 394149709531. The reversal of 394149709504 is 405907941493.

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, 65513899 + ... + 65519914.

Almost surely, 2^394149709504 is an apocalyptic number.

It is an amenable number.

394149709504 is an abundant number, since it is smaller than the sum of its proper divisors (404632420640).

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

394149709504 is a wasteful number, since it uses less digits than its factorization.

394149709504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131033872 (or 131033862 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 394149709504 in words is "three hundred ninety-four billion, one hundred forty-nine million, seven hundred nine thousand, five hundred four".