394107871203072 has 1080 divisors, whose sum is σ = 1303754393264400. Its totient is φ = 118293649883136.

The previous prime is 394107871203049. The next prime is 394107871203077. The reversal of 394107871203072 is 270302178701493.

394107871203072 is a `hidden beast` number, since 3 + 9 + 410 + 7 + 8 + 7 + 120 + 30 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394107871203077) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 194237490954 + ... + 194237492982.

Almost surely, 2^{394107871203072} is an apocalyptic number.

394107871203072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394107871203072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651877196632200).

394107871203072 is an abundant number, since it is smaller than the sum of its proper divisors (909646522061328).

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

394107871203072 is a wasteful number, since it uses less digits than its factorization.

394107871203072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415 (or 3379 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 394107871203072 in words is "three hundred ninety-four trillion, one hundred seven billion, eight hundred seventy-one million, two hundred three thousand, seventy-two".