641953288046 has 8 divisors (see below), whose sum is σ = 1100491350960. Its totient is φ = 275122837728.

The previous prime is 641953288043. The next prime is 641953288051. The reversal of 641953288046 is 640882359146.

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

It is a junction number, because it is equal to n+sod(n) for n = 641953287982 and 641953288000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641953288043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22926903131 + ... + 22926903158.

It is an arithmetic number, because the mean of its divisors is an integer number (137561418870).

Almost surely, 2^641953288046 is an apocalyptic number.

641953288046 is a deficient number, since it is larger than the sum of its proper divisors (458538062914).

641953288046 is a wasteful number, since it uses less digits than its factorization.

641953288046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45853806298.

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 641953288046 in words is "six hundred forty-one billion, nine hundred fifty-three million, two hundred eighty-eight thousand, forty-six".