1980987063 has 16 divisors (see below), whose sum is σ = 3033091200. Its totient is φ = 1137408480.

The previous prime is 1980987053. The next prime is 1980987077. The reversal of 1980987063 is 3607890891.

It is not a de Polignac number, because 1980987063 - 2⁵ = 1980987031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1980986997 and 1980987015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980987053) 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 15 ways as a sum of consecutive naturals, for example, 1579108 + ... + 1580361.

It is an arithmetic number, because the mean of its divisors is an integer number (189568200).

Almost surely, 2^1980987063 is an apocalyptic number.

1980987063 is a deficient number, since it is larger than the sum of its proper divisors (1052104137).

1980987063 is a wasteful number, since it uses less digits than its factorization.

1980987063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159502.

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 1980987063 is about 44508.2808362669. The cubic root of 1980987063 is about 1255.9158646412.

The spelling of 1980987063 in words is "one billion, nine hundred eighty million, nine hundred eighty-seven thousand, sixty-three".