1979748888 has 64 divisors (see below), whose sum is σ = 5334336000. Its totient is φ = 608668800.

The previous prime is 1979748847. The next prime is 1979748907. The reversal of 1979748888 is 8888479791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732163 + ... + 734861.

It is an arithmetic number, because the mean of its divisors is an integer number (83349000).

Almost surely, 2^1979748888 is an apocalyptic number.

It is an amenable number.

1979748888 is an abundant number, since it is smaller than the sum of its proper divisors (3354587112).

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

1979748888 is a wasteful number, since it uses less digits than its factorization.

1979748888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5072 (or 5068 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 69.

The square root of 1979748888 is about 44494.3691718402. The cubic root of 1979748888 is about 1255.6541486933.

The spelling of 1979748888 in words is "one billion, nine hundred seventy-nine million, seven hundred forty-eight thousand, eight hundred eighty-eight".