406858383593 has 4 divisors (see below), whose sum is σ = 406860010068. Its totient is φ = 406856757120.

The previous prime is 406858383583. The next prime is 406858383601. The reversal of 406858383593 is 395383858604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 195269423449 + 211588960144 = 441893^2 + 459988^2 .

It is a cyclic number.

It is not a de Polignac number, because 406858383593 - 2³⁶ = 338138906857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406858383583) 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, 350096 + ... + 967617.

It is an arithmetic number, because the mean of its divisors is an integer number (101715002517).

Almost surely, 2^406858383593 is an apocalyptic number.

It is an amenable number.

406858383593 is a deficient number, since it is larger than the sum of its proper divisors (1626475).

406858383593 is a wasteful number, since it uses less digits than its factorization.

406858383593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626474.

The product of its (nonzero) digits is 74649600, while the sum is 62.

The spelling of 406858383593 in words is "four hundred six billion, eight hundred fifty-eight million, three hundred eighty-three thousand, five hundred ninety-three".