641874675080 has 128 divisors (see below), whose sum is σ = 1538840540160. Its totient is φ = 240554496000.

The previous prime is 641874675061. The next prime is 641874675269. The reversal of 641874675080 is 80576478146.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6611852 + ... + 6708228.

It is an arithmetic number, because the mean of its divisors is an integer number (12022191720).

Almost surely, 2^641874675080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641874675080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769420270080).

641874675080 is an abundant number, since it is smaller than the sum of its proper divisors (896965865080).

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

641874675080 is a wasteful number, since it uses less digits than its factorization.

641874675080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96591 (or 96587 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 641874675080 in words is "six hundred forty-one billion, eight hundred seventy-four million, six hundred seventy-five thousand, eighty".