104005280512 has 72 divisors (see below), whose sum is σ = 238773915296. Its totient is φ = 44289662976.

The previous prime is 104005280501. The next prime is 104005280513. The reversal of 104005280512 is 215082500401.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (104005280513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96508 + ... + 466180.

Almost surely, 2^104005280512 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 104005280512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119386957648).

104005280512 is an abundant number, since it is smaller than the sum of its proper divisors (134768634784).

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

104005280512 is an equidigital number, since it uses as much as digits as its factorization.

104005280512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369853 (or 369839 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 104005280512 its reverse (215082500401), we get a palindrome (319087780913).

The spelling of 104005280512 in words is "one hundred four billion, five million, two hundred eighty thousand, five hundred twelve".