641953363 has 8 divisors (see below), whose sum is σ = 665808896. Its totient is φ = 618294600.

The previous prime is 641953357. The next prime is 641953369. The reversal of 641953363 is 363359146.

641953363 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (641953357) and next prime (641953369).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641953363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641953369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42531 + ... + 55612.

It is an arithmetic number, because the mean of its divisors is an integer number (83226112).

Almost surely, 2^641953363 is an apocalyptic number.

641953363 is a deficient number, since it is larger than the sum of its proper divisors (23855533).

641953363 is a wasteful number, since it uses less digits than its factorization.

641953363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98385.

The product of its digits is 174960, while the sum is 40.

The square root of 641953363 is about 25336.7985941397. The cubic root of 641953363 is about 862.6497340824.

The spelling of 641953363 in words is "six hundred forty-one million, nine hundred fifty-three thousand, three hundred sixty-three".