641226418802 has 16 divisors (see below), whose sum is σ = 1018433958912. Its totient is φ = 301749007680.

The previous prime is 641226418801. The next prime is 641226418813. The reversal of 641226418802 is 208814622146.

It is a super-2 number, since 2×641226418802² (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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3347027 + ... + 3533417.

It is an arithmetic number, because the mean of its divisors is an integer number (63652122432).

Almost surely, 2^641226418802 is an apocalyptic number.

641226418802 is a deficient number, since it is larger than the sum of its proper divisors (377207540110).

641226418802 is a wasteful number, since it uses less digits than its factorization.

641226418802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287593.

The product of its (nonzero) digits is 294912, while the sum is 44.

The spelling of 641226418802 in words is "six hundred forty-one billion, two hundred twenty-six million, four hundred eighteen thousand, eight hundred two".