1920581215852 has 96 divisors (see below), whose sum is σ = 3830882807808. Its totient is φ = 835783432704.

The previous prime is 1920581215841. The next prime is 1920581215871. The reversal of 1920581215852 is 2585121850291.

It is a junction number, because it is equal to n+sod(n) for n = 1920581215796 and 1920581215805.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180111073 + ... + 180121735.

It is an arithmetic number, because the mean of its divisors is an integer number (39905029248).

Almost surely, 2^{1920581215852} is an apocalyptic number.

It is an amenable number.

1920581215852 is a deficient number, since it is larger than the sum of its proper divisors (1910301591956).

1920581215852 is a wasteful number, since it uses less digits than its factorization.

1920581215852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12839 (or 12837 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 49.

The spelling of 1920581215852 in words is "one trillion, nine hundred twenty billion, five hundred eighty-one million, two hundred fifteen thousand, eight hundred fifty-two".