2856820680324 has 72 divisors (see below), whose sum is σ = 7777267407000. Its totient is φ = 878980303872.

The previous prime is 2856820680319. The next prime is 2856820680341. The reversal of 2856820680324 is 4230860286582.

It is a happy number.

2856820680324 is a `hidden beast` number, since 28 + 568 + 20 + 6 + 8 + 0 + 32 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 824536641600 + 2032284038724 = 908040^2 + 1425582^2 .

It is a super-2 number, since 2×2856820680324² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10658302 + ... + 10923050.

It is an arithmetic number, because the mean of its divisors is an integer number (108017602875).

Almost surely, 2^{2856820680324} is an apocalyptic number.

It is an amenable number.

2856820680324 is an abundant number, since it is smaller than the sum of its proper divisors (4920446726676).

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

2856820680324 is a wasteful number, since it uses less digits than its factorization.

2856820680324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287829 (or 287824 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 2856820680324 in words is "two trillion, eight hundred fifty-six billion, eight hundred twenty million, six hundred eighty thousand, three hundred twenty-four".