104326391520 has 288 divisors, whose sum is σ = 405953638272. Its totient is φ = 24169660416.

The previous prime is 104326391501. The next prime is 104326391527. The reversal of 104326391520 is 25193623401.

104326391520 is a `hidden beast` number, since 1 + 0 + 4 + 3 + 2 + 639 + 15 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104326391527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154329 + ... + 482151.

It is an arithmetic number, because the mean of its divisors is an integer number (1409561244).

Almost surely, 2^104326391520 is an apocalyptic number.

104326391520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104326391520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202976819136).

104326391520 is an abundant number, since it is smaller than the sum of its proper divisors (301627246752).

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

104326391520 is a wasteful number, since it uses less digits than its factorization.

104326391520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327874 (or 327863 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 104326391520 in words is "one hundred four billion, three hundred twenty-six million, three hundred ninety-one thousand, five hundred twenty".