394135472752 has 20 divisors (see below), whose sum is σ = 872728547056. Its totient is φ = 168915202560.

The previous prime is 394135472683. The next prime is 394135472791. The reversal of 394135472752 is 257274531493.

It is a self number, because there is not a number n which added to its sum of digits gives 394135472752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1759533249 + ... + 1759533472.

Almost surely, 2^394135472752 is an apocalyptic number.

It is an amenable number.

394135472752 is an abundant number, since it is smaller than the sum of its proper divisors (478593074304).

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

394135472752 is a wasteful number, since it uses less digits than its factorization.

394135472752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519066736 (or 3519066730 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 52.

The spelling of 394135472752 in words is "three hundred ninety-four billion, one hundred thirty-five million, four hundred seventy-two thousand, seven hundred fifty-two".