1979975319 has 16 divisors (see below), whose sum is σ = 3121144320. Its totient is φ = 1092399840.

The previous prime is 1979975297. The next prime is 1979975359. The reversal of 1979975319 is 9135799791.

It is not a de Polignac number, because 1979975319 - 2⁵ = 1979975287 is a prime.

It is a super-2 number, since 2×1979975319² = 7840604527698303522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979975359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1624987 + ... + 1626204.

It is an arithmetic number, because the mean of its divisors is an integer number (195071520).

Almost surely, 2^1979975319 is an apocalyptic number.

1979975319 is a deficient number, since it is larger than the sum of its proper divisors (1141169001).

1979975319 is a wasteful number, since it uses less digits than its factorization.

1979975319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251230.

The product of its digits is 4822335, while the sum is 60.

The square root of 1979975319 is about 44496.9135895963. The cubic root of 1979975319 is about 1255.7020180952.

The spelling of 1979975319 in words is "one billion, nine hundred seventy-nine million, nine hundred seventy-five thousand, three hundred nineteen".