641226418803 has 24 divisors (see below), whose sum is σ = 930145402368. Its totient is φ = 425673096192.

The previous prime is 641226418801. The next prime is 641226418813. The reversal of 641226418803 is 308814622146.

641226418803 is a `hidden beast` number, since 6 + 4 + 1 + 226 + 418 + 8 + 0 + 3 = 666.

It is not a de Polignac number, because 641226418803 - 2¹ = 641226418801 is a prime.

It is a super-2 number, since 2×641226418803² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641226418801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3109326 + ... + 3309132.

It is an arithmetic number, because the mean of its divisors is an integer number (38756058432).

Almost surely, 2^641226418803 is an apocalyptic number.

641226418803 is a deficient number, since it is larger than the sum of its proper divisors (288918983565).

641226418803 is a wasteful number, since it uses less digits than its factorization.

641226418803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201323 (or 201320 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 641226418803 in words is "six hundred forty-one billion, two hundred twenty-six million, four hundred eighteen thousand, eight hundred three".