104149918728 has 96 divisors (see below), whose sum is σ = 294928920000. Its totient is φ = 33140409984.

The previous prime is 104149918723. The next prime is 104149918759. The reversal of 104149918728 is 827819941401.

104149918728 is a `hidden beast` number, since 10 + 41 + 499 + 1 + 87 + 28 = 666.

It is not an unprimeable number, because it can be changed into a prime (104149918723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 763326 + ... + 889362.

It is an arithmetic number, because the mean of its divisors is an integer number (3072176250).

Almost surely, 2^104149918728 is an apocalyptic number.

104149918728 is a gapful number since it is divisible by the number (18) 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 104149918728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147464460000).

104149918728 is an abundant number, since it is smaller than the sum of its proper divisors (190779001272).

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

104149918728 is a wasteful number, since it uses less digits than its factorization.

104149918728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126571 (or 126564 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 104149918728 in words is "one hundred four billion, one hundred forty-nine million, nine hundred eighteen thousand, seven hundred twenty-eight".