1982801191384 has 32 divisors (see below), whose sum is σ = 4003939411920. Its totient is φ = 915091871616.

The previous prime is 1982801191361. The next prime is 1982801191387. The reversal of 1982801191384 is 4831911082891.

It is a super-3 number, since 3×1982801191384³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982801191387) 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, 1579419 + ... + 2541685.

Almost surely, 2^{1982801191384} is an apocalyptic number.

It is an amenable number.

1982801191384 is an abundant number, since it is smaller than the sum of its proper divisors (2021138220536).

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

1982801191384 is a wasteful number, since it uses less digits than its factorization.

1982801191384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982099 (or 982095 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 55.

The spelling of 1982801191384 in words is "one trillion, nine hundred eighty-two billion, eight hundred one million, one hundred ninety-one thousand, three hundred eighty-four".