1984156453448 has 96 divisors (see below), whose sum is σ = 4178481162240. Its totient is φ = 877585363200.

The previous prime is 1984156453429. The next prime is 1984156453451. The reversal of 1984156453448 is 8443546514891.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12482873 + ... + 12640823.

It is an arithmetic number, because the mean of its divisors is an integer number (43525845440).

Almost surely, 2^{1984156453448} 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 1984156453448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2089240581120).

1984156453448 is an abundant number, since it is smaller than the sum of its proper divisors (2194324708792).

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

1984156453448 is a wasteful number, since it uses less digits than its factorization.

1984156453448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158119 (or 158062 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 62.

The spelling of 1984156453448 in words is "one trillion, nine hundred eighty-four billion, one hundred fifty-six million, four hundred fifty-three thousand, four hundred forty-eight".