394657064355036 has 288 divisors, whose sum is σ = 1094873979386880. Its totient is φ = 110282172489216.

The previous prime is 394657064355031. The next prime is 394657064355049. The reversal of 394657064355036 is 630553460756493.

It is a super-2 number, since 2×394657064355036² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394657064355031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28583832045 + ... + 28583845851.

It is an arithmetic number, because the mean of its divisors is an integer number (3801645761760).

Almost surely, 2^{394657064355036} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394657064355036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547436989693440).

394657064355036 is an abundant number, since it is smaller than the sum of its proper divisors (700216915031844).

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

394657064355036 is a wasteful number, since it uses less digits than its factorization.

394657064355036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16713 (or 16704 counting only the distinct ones).

The product of its (nonzero) digits is 734832000, while the sum is 66.

The spelling of 394657064355036 in words is "three hundred ninety-four trillion, six hundred fifty-seven billion, sixty-four million, three hundred fifty-five thousand, thirty-six".