394595496381 has 8 divisors (see below), whose sum is σ = 532466212320. Its totient is φ = 259894222352.

The previous prime is 394595496341. The next prime is 394595496397. The reversal of 394595496381 is 183694595493.

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

It is a cyclic number.

It is not a de Polignac number, because 394595496381 - 2²¹ = 394593399229 is a prime.

It is a super-2 number, since 2×394595496381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394595496301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792360186 + ... + 792360683.

It is an arithmetic number, because the mean of its divisors is an integer number (66558276540).

Almost surely, 2^394595496381 is an apocalyptic number.

It is an amenable number.

394595496381 is a deficient number, since it is larger than the sum of its proper divisors (137870715939).

394595496381 is a wasteful number, since it uses less digits than its factorization.

394595496381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584720955.

The product of its digits is 125971200, while the sum is 66.

The spelling of 394595496381 in words is "three hundred ninety-four billion, five hundred ninety-five million, four hundred ninety-six thousand, three hundred eighty-one".