205313401245426 has 16 divisors (see below), whose sum is σ = 410638894026528. Its totient is φ = 68435785159200.

The previous prime is 205313401245347. The next prime is 205313401245443. The reversal of 205313401245426 is 624542104313502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503593240 + ... + 504000771.

It is an arithmetic number, because the mean of its divisors is an integer number (25664930876658).

Almost surely, 2^{205313401245426} is an apocalyptic number.

205313401245426 is an abundant number, since it is smaller than the sum of its proper divisors (205325492781102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205313401245426 is a wasteful number, since it uses less digits than its factorization.

205313401245426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007627977.

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 205313401245426 its reverse (624542104313502), we get a palindrome (829855505558928).

The spelling of 205313401245426 in words is "two hundred five trillion, three hundred thirteen billion, four hundred one million, two hundred forty-five thousand, four hundred twenty-six".