1979055065 has 24 divisors (see below), whose sum is σ = 2607899328. Its totient is φ = 1440828480.

The previous prime is 1979055059. The next prime is 1979055077. The reversal of 1979055065 is 5605509791.

It is not a de Polignac number, because 1979055065 - 2⁴ = 1979055049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43502 + ... + 76488.

It is an arithmetic number, because the mean of its divisors is an integer number (108662472).

Almost surely, 2^1979055065 is an apocalyptic number.

It is an amenable number.

1979055065 is a deficient number, since it is larger than the sum of its proper divisors (628844263).

1979055065 is a wasteful number, since it uses less digits than its factorization.

1979055065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33089 (or 33076 counting only the distinct ones).

The product of its (nonzero) digits is 425250, while the sum is 47.

The square root of 1979055065 is about 44486.5717379975. The cubic root of 1979055065 is about 1255.5074459932.

The spelling of 1979055065 in words is "one billion, nine hundred seventy-nine million, fifty-five thousand, sixty-five".