2861533255568 has 40 divisors (see below), whose sum is σ = 5973352639296. Its totient is φ = 1320120720000.

The previous prime is 2861533255561. The next prime is 2861533255621. The reversal of 2861533255568 is 8655523351682.

It is not an unprimeable number, because it can be changed into a prime (2861533255561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2587628 + ... + 3524043.

Almost surely, 2^{2861533255568} is an apocalyptic number.

It is an amenable number.

2861533255568 is an abundant number, since it is smaller than the sum of its proper divisors (3111819383728).

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

2861533255568 is a wasteful number, since it uses less digits than its factorization.

2861533255568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113943 (or 6113937 counting only the distinct ones).

The product of its digits is 51840000, while the sum is 59.

The spelling of 2861533255568 in words is "two trillion, eight hundred sixty-one billion, five hundred thirty-three million, two hundred fifty-five thousand, five hundred sixty-eight".