1013128449504 has 48 divisors (see below), whose sum is σ = 2751167779920. Its totient is φ = 326064327680.

The previous prime is 1013128449481. The next prime is 1013128449539. The reversal of 1013128449504 is 4059448213101.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181952757 + ... + 181958324.

It is an arithmetic number, because the mean of its divisors is an integer number (57315995415).

Almost surely, 2^{1013128449504} is an apocalyptic number.

It is an amenable number.

1013128449504 is an abundant number, since it is smaller than the sum of its proper divisors (1738039330416).

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

1013128449504 is a wasteful number, since it uses less digits than its factorization.

1013128449504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363911123 (or 363911115 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 1013128449504 in words is "one trillion, thirteen billion, one hundred twenty-eight million, four hundred forty-nine thousand, five hundred four".