1982588865 has 16 divisors (see below), whose sum is σ = 3173584128. Its totient is φ = 1056900096.

The previous prime is 1982588843. The next prime is 1982588873. The reversal of 1982588865 is 5688852891.

It is not a de Polignac number, because 1982588865 - 2⁸ = 1982588609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1982588799 and 1982588808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5409 + ... + 63201.

It is an arithmetic number, because the mean of its divisors is an integer number (198349008).

Almost surely, 2^1982588865 is an apocalyptic number.

1982588865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1982588865 is a deficient number, since it is larger than the sum of its proper divisors (1190995263).

1982588865 is a wasteful number, since it uses less digits than its factorization.

1982588865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60088.

The product of its digits is 11059200, while the sum is 60.

The square root of 1982588865 is about 44526.2716269844. The cubic root of 1982588865 is about 1256.2542795330.

The spelling of 1982588865 in words is "one billion, nine hundred eighty-two million, five hundred eighty-eight thousand, eight hundred sixty-five".