2113506581828 has 48 divisors (see below), whose sum is σ = 3777830098560. Its totient is φ = 1034228093184.

The previous prime is 2113506581803. The next prime is 2113506581887. The reversal of 2113506581828 is 8281856053112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455200475 + ... + 455205117.

It is an arithmetic number, because the mean of its divisors is an integer number (78704793720).

Almost surely, 2^{2113506581828} is an apocalyptic number.

It is an amenable number.

2113506581828 is a deficient number, since it is larger than the sum of its proper divisors (1664323516732).

2113506581828 is a wasteful number, since it uses less digits than its factorization.

2113506581828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9596 (or 9594 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 50.

The spelling of 2113506581828 in words is "two trillion, one hundred thirteen billion, five hundred six million, five hundred eighty-one thousand, eight hundred twenty-eight".