2859178668680 has 32 divisors (see below), whose sum is σ = 6433745298840. Its totient is φ = 1143565992960.

The previous prime is 2859178668679. The next prime is 2859178668779. The reversal of 2859178668680 is 868668719582.

It can be written as a sum of positive squares in 4 ways, for example, as 2368514844004 + 490663824676 = 1538998^2 + 700474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2859178668598 and 2859178668607.

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 7 ways as a sum of consecutive naturals, for example, 2856209 + ... + 3725088.

Almost surely, 2^{2859178668680} is an apocalyptic number.

2859178668680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2859178668680 is an abundant number, since it is smaller than the sum of its proper divisors (3574566630160).

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

2859178668680 is a wasteful number, since it uses less digits than its factorization.

2859178668680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6592169 (or 6592165 counting only the distinct ones).

The product of its (nonzero) digits is 557383680, while the sum is 74.

The spelling of 2859178668680 in words is "two trillion, eight hundred fifty-nine billion, one hundred seventy-eight million, six hundred sixty-eight thousand, six hundred eighty".