1979754648 has 16 divisors (see below), whose sum is σ = 4949386680. Its totient is φ = 659918208.

The previous prime is 1979754611. The next prime is 1979754649. The reversal of 1979754648 is 8464579791.

It is a junction number, because it is equal to n+sod(n) for n = 1979754591 and 1979754600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979754649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41244865 + ... + 41244912.

Almost surely, 2^1979754648 is an apocalyptic number.

It is an amenable number.

1979754648 is an abundant number, since it is smaller than the sum of its proper divisors (2969632032).

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

1979754648 is a wasteful number, since it uses less digits than its factorization.

1979754648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82489786 (or 82489782 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 60.

The square root of 1979754648 is about 44494.4338990845. The cubic root of 1979754648 is about 1255.6553664506.

The spelling of 1979754648 in words is "one billion, nine hundred seventy-nine million, seven hundred fifty-four thousand, six hundred forty-eight".