394958859493 has 8 divisors (see below), whose sum is σ = 445721597280. Its totient is φ = 346672352880.

The previous prime is 394958859487. The next prime is 394958859497.

394958859493 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 a de Polignac number, because none of the positive numbers 2^k-394958859493 is a prime.

It is a super-3 number, since 3×394958859493³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394958859497) 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, 619057455 + ... + 619058092.

It is an arithmetic number, because the mean of its divisors is an integer number (55715199660).

Almost surely, 2^394958859493 is an apocalyptic number.

It is an amenable number.

394958859493 is a deficient number, since it is larger than the sum of its proper divisors (50762737787).

394958859493 is a wasteful number, since it uses less digits than its factorization.

394958859493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238115587.

The product of its digits is 1511654400, while the sum is 76.

It can be divided in two parts, 39495 and 8859493, that added together give a palindrome (8898988).

The spelling of 394958859493 in words is "three hundred ninety-four billion, nine hundred fifty-eight million, eight hundred fifty-nine thousand, four hundred ninety-three".