203426064454 has 48 divisors (see below), whose sum is σ = 329024771712. Its totient is φ = 94250749824.

The previous prime is 203426064403. The next prime is 203426064521. The reversal of 203426064454 is 454460624302.

203426064454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9109867 + ... + 9132169.

It is an arithmetic number, because the mean of its divisors is an integer number (6854682744).

Almost surely, 2^203426064454 is an apocalyptic number.

203426064454 is a deficient number, since it is larger than the sum of its proper divisors (125598707258).

203426064454 is a wasteful number, since it uses less digits than its factorization.

203426064454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22621 (or 22598 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 40.

Adding to 203426064454 its reverse (454460624302), we get a palindrome (657886688756).

The spelling of 203426064454 in words is "two hundred three billion, four hundred twenty-six million, sixty-four thousand, four hundred fifty-four".