641946284926 has 4 divisors (see below), whose sum is σ = 962919427392. Its totient is φ = 320973142462.

The previous prime is 641946284923. The next prime is 641946284927. The reversal of 641946284926 is 629482649146.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641946284923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160486571230 + ... + 160486571233.

It is an arithmetic number, because the mean of its divisors is an integer number (240729856848).

Almost surely, 2^641946284926 is an apocalyptic number.

641946284926 is a deficient number, since it is larger than the sum of its proper divisors (320973142466).

641946284926 is a wasteful number, since it uses less digits than its factorization.

641946284926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320973142465.

The product of its digits is 35831808, while the sum is 61.

The spelling of 641946284926 in words is "six hundred forty-one billion, nine hundred forty-six million, two hundred eighty-four thousand, nine hundred twenty-six".