394145541493 has 8 divisors (see below), whose sum is σ = 430053003360. Its totient is φ = 358250754480.

The previous prime is 394145541463. The next prime is 394145541509.

394145541493 is nontrivially palindromic in base 10.

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 394145541493 - 2²¹ = 394143444341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 394145541493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394145541463) 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, 3103630 + ... + 3228127.

It is an arithmetic number, because the mean of its divisors is an integer number (53756625420).

Almost surely, 2^394145541493 is an apocalyptic number.

It is an amenable number.

394145541493 is a deficient number, since it is larger than the sum of its proper divisors (35907461867).

394145541493 is a wasteful number, since it uses less digits than its factorization.

394145541493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6337427.

The product of its digits is 4665600, while the sum is 52.

The spelling of 394145541493 in words is "three hundred ninety-four billion, one hundred forty-five million, five hundred forty-one thousand, four hundred ninety-three".