641525430740608 has 96 divisors (see below), whose sum is σ = 1324274543316000. Its totient is φ = 309550842478080.

The previous prime is 641525430740561. The next prime is 641525430740629. The reversal of 641525430740608 is 806047034525146.

641525430740608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36896203 + ... + 51423541.

It is an arithmetic number, because the mean of its divisors is an integer number (13794526492875).

Almost surely, 2^{641525430740608} 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 641525430740608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662137271658000).

641525430740608 is an abundant number, since it is smaller than the sum of its proper divisors (682749112575392).

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

641525430740608 is a wasteful number, since it uses less digits than its factorization.

641525430740608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14527774 (or 14527731 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 641525430740608 in words is "six hundred forty-one trillion, five hundred twenty-five billion, four hundred thirty million, seven hundred forty thousand, six hundred eight".