2858778582 has 64 divisors (see below), whose sum is σ = 6782828544. Its totient is φ = 793290240.

The previous prime is 2858778541. The next prime is 2858778613.

2858778582 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2858778582² = 16345229961803861448, which contains 22 as substring.

It is a congruent number.

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, 7083 + ... + 75945.

It is an arithmetic number, because the mean of its divisors is an integer number (105981696).

Almost surely, 2^2858778582 is an apocalyptic number.

2858778582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2858778582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3391414272).

2858778582 is an abundant number, since it is smaller than the sum of its proper divisors (3924049962).

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

2858778582 is a wasteful number, since it uses less digits than its factorization.

2858778582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68933.

The product of its digits is 20070400, while the sum is 60.

The square root of 2858778582 is about 53467.5469981558. The cubic root of 2858778582 is about 1419.2541513950.

The spelling of 2858778582 in words is "two billion, eight hundred fifty-eight million, seven hundred seventy-eight thousand, five hundred eighty-two".