641353368 has 16 divisors (see below), whose sum is σ = 1603383480. Its totient is φ = 213784448.

The previous prime is 641353351. The next prime is 641353369. The reversal of 641353368 is 863353146.

It is a super-2 number, since 2×641353368² = 822668285289886848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641353369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13361505 + ... + 13361552.

Almost surely, 2^641353368 is an apocalyptic number.

It is an amenable number.

641353368 is an abundant number, since it is smaller than the sum of its proper divisors (962030112).

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

641353368 is a wasteful number, since it uses less digits than its factorization.

641353368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26723066 (or 26723062 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 641353368 is about 25324.9554392500. The cubic root of 641353368 is about 862.3808947903.

The spelling of 641353368 in words is "six hundred forty-one million, three hundred fifty-three thousand, three hundred sixty-eight".