641235326130 has 384 divisors, whose sum is σ = 2032788026880. Its totient is φ = 137116385280.

The previous prime is 641235326057. The next prime is 641235326153. The reversal of 641235326130 is 31623532146.

641235326130 is a `hidden beast` number, since 6 + 4 + 1 + 2 + 3 + 5 + 32 + 613 + 0 = 666.

It is a super-2 number, since 2×641235326130² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 173727585 + ... + 173731275.

It is an arithmetic number, because the mean of its divisors is an integer number (5293718820).

Almost surely, 2^641235326130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641235326130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016394013440).

641235326130 is an abundant number, since it is smaller than the sum of its proper divisors (1391552700750).

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

641235326130 is a wasteful number, since it uses less digits than its factorization.

641235326130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034 (or 4031 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 641235326130 its reverse (31623532146), we get a palindrome (672858858276).

The spelling of 641235326130 in words is "six hundred forty-one billion, two hundred thirty-five million, three hundred twenty-six thousand, one hundred thirty".