1982094453887 has 8 divisors (see below), whose sum is σ = 1995288452832. Its totient is φ = 1968901344000.

The previous prime is 1982094453853. The next prime is 1982094453943. The reversal of 1982094453887 is 7883544902891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1982094453887 - 2¹⁴ = 1982094437503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982094453587) 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, 4598087 + ... + 5010647.

It is an arithmetic number, because the mean of its divisors is an integer number (249411056604).

Almost surely, 2^{1982094453887} is an apocalyptic number.

1982094453887 is a deficient number, since it is larger than the sum of its proper divisors (13193998945).

1982094453887 is a wasteful number, since it uses less digits than its factorization.

1982094453887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444529.

The product of its (nonzero) digits is 139345920, while the sum is 68.

The spelling of 1982094453887 in words is "one trillion, nine hundred eighty-two billion, ninety-four million, four hundred fifty-three thousand, eight hundred eighty-seven".