394961328293 has 4 divisors (see below), whose sum is σ = 451384375200. Its totient is φ = 338538281388.

The previous prime is 394961328277. The next prime is 394961328317. The reversal of 394961328293 is 392823169493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 394961328293 - 2⁴ = 394961328277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394961328233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28211523443 + ... + 28211523456.

It is an arithmetic number, because the mean of its divisors is an integer number (112846093800).

Almost surely, 2^394961328293 is an apocalyptic number.

It is an amenable number.

394961328293 is a deficient number, since it is larger than the sum of its proper divisors (56423046907).

394961328293 is an equidigital number, since it uses as much as digits as its factorization.

394961328293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56423046906.

The product of its digits is 15116544, while the sum is 59.

The spelling of 394961328293 in words is "three hundred ninety-four billion, nine hundred sixty-one million, three hundred twenty-eight thousand, two hundred ninety-three".