408793338173953 has 4 divisors (see below), whose sum is σ = 432840005125380. Its totient is φ = 384746671222528.

The previous prime is 408793338173947. The next prime is 408793338173999. The reversal of 408793338173953 is 359371833397804.

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 156653460112384 + 252139878061569 = 12516128^2 + 15878913^2 .

It is a cyclic number.

It is not a de Polignac number, because 408793338173953 - 2²⁹ = 408792801303041 is a prime.

It is a super-2 number, since 2×408793338173953² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408793338173153) 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, 12023333475688 + ... + 12023333475721.

It is an arithmetic number, because the mean of its divisors is an integer number (108210001281345).

Almost surely, 2^{408793338173953} is an apocalyptic number.

It is an amenable number.

408793338173953 is a deficient number, since it is larger than the sum of its proper divisors (24046666951427).

408793338173953 is a wasteful number, since it uses less digits than its factorization.

408793338173953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24046666951426.

The product of its (nonzero) digits is 1234517760, while the sum is 73.

The spelling of 408793338173953 in words is "four hundred eight trillion, seven hundred ninety-three billion, three hundred thirty-eight million, one hundred seventy-three thousand, nine hundred fifty-three".