1979136384 has 128 divisors (see below), whose sum is σ = 5510350080. Its totient is φ = 628193280.

The previous prime is 1979136359. The next prime is 1979136403. The reversal of 1979136384 is 4836319791.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2923054 + ... + 2923730.

It is an arithmetic number, because the mean of its divisors is an integer number (43049610).

Almost surely, 2^1979136384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1979136384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2755175040).

1979136384 is an abundant number, since it is smaller than the sum of its proper divisors (3531213696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1979136384 is a wasteful number, since it uses less digits than its factorization.

1979136384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 1036 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 1979136384 is about 44487.4857010373. The cubic root of 1979136384 is about 1255.5246419459.

The spelling of 1979136384 in words is "one billion, nine hundred seventy-nine million, one hundred thirty-six thousand, three hundred eighty-four".