1982199579 has 8 divisors (see below), whose sum is σ = 2648954880. Its totient is φ = 1318455336.

The previous prime is 1982199539. The next prime is 1982199581. The reversal of 1982199579 is 9759912891.

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

It is not a de Polignac number, because 1982199579 - 2¹² = 1982195483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1982199539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751227 + ... + 753860.

It is an arithmetic number, because the mean of its divisors is an integer number (331119360).

Almost surely, 2^1982199579 is an apocalyptic number.

1982199579 is a deficient number, since it is larger than the sum of its proper divisors (666755301).

1982199579 is a wasteful number, since it uses less digits than its factorization.

1982199579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505529.

The product of its digits is 3674160, while the sum is 60.

The square root of 1982199579 is about 44521.8999931494. The cubic root of 1982199579 is about 1256.1720513205.

The spelling of 1982199579 in words is "one billion, nine hundred eighty-two million, one hundred ninety-nine thousand, five hundred seventy-nine".