1982946975 has 24 divisors (see below), whose sum is σ = 3282051840. Its totient is φ = 1056417120.

The previous prime is 1982946943. The next prime is 1982946991. The reversal of 1982946975 is 5796492891.

It is not a de Polignac number, because 1982946975 - 2⁵ = 1982946943 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 57066 + ... + 84984.

It is an arithmetic number, because the mean of its divisors is an integer number (136752160).

Almost surely, 2^1982946975 is an apocalyptic number.

1982946975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1982946975 is a deficient number, since it is larger than the sum of its proper divisors (1299104865).

1982946975 is a wasteful number, since it uses less digits than its factorization.

1982946975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28879 (or 28874 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 60.

The square root of 1982946975 is about 44530.2927791857. The cubic root of 1982946975 is about 1256.3299129878.

The spelling of 1982946975 in words is "one billion, nine hundred eighty-two million, nine hundred forty-six thousand, nine hundred seventy-five".