2861828573436 has 360 divisors, whose sum is σ = 9001621867392. Its totient is φ = 789699456000.

The previous prime is 2861828573413. The next prime is 2861828573441. The reversal of 2861828573436 is 6343758281682.

2861828573436 is a `hidden beast` number, since 2 + 8 + 6 + 1 + 8 + 28 + 573 + 4 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 256407696 + ... + 256418856.

Almost surely, 2^{2861828573436} 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 2861828573436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4500810933696).

2861828573436 is an abundant number, since it is smaller than the sum of its proper divisors (6139793293956).

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

2861828573436 is a wasteful number, since it uses less digits than its factorization.

2861828573436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11743 (or 11725 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 63.

The spelling of 2861828573436 in words is "two trillion, eight hundred sixty-one billion, eight hundred twenty-eight million, five hundred seventy-three thousand, four hundred thirty-six".