2078579784 has 128 divisors (see below), whose sum is σ = 5649840000. Its totient is φ = 635019264.

The previous prime is 2078579777. The next prime is 2078579807. The reversal of 2078579784 is 4879758702.

2078579784 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5888152 + ... + 5888504.

It is an arithmetic number, because the mean of its divisors is an integer number (44139375).

Almost surely, 2^2078579784 is an apocalyptic number.

2078579784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2078579784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2824920000).

2078579784 is an abundant number, since it is smaller than the sum of its proper divisors (3571260216).

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

2078579784 is a wasteful number, since it uses less digits than its factorization.

2078579784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 57.

The square root of 2078579784 is about 45591.4441973491. Note that the first 3 decimals coincide. The cubic root of 2078579784 is about 1276.2102636635.

The spelling of 2078579784 in words is "two billion, seventy-eight million, five hundred seventy-nine thousand, seven hundred eighty-four".