2685708311240 has 32 divisors (see below), whose sum is σ = 6042933073080. Its totient is φ = 1074267436032.

The previous prime is 2685708311227. The next prime is 2685708311257. The reversal of 2685708311240 is 421138075862.

It can be written as a sum of positive squares in 4 ways, for example, as 1636112159236 + 1049596152004 = 1279106^2 + 1024498^2 .

It is a super-2 number, since 2×2685708311240² (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 7 ways as a sum of consecutive naturals, for example, 2459054 + ... + 3379106.

Almost surely, 2^{2685708311240} is an apocalyptic number.

2685708311240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2685708311240 is an abundant number, since it is smaller than the sum of its proper divisors (3357224761840).

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

2685708311240 is a wasteful number, since it uses less digits than its factorization.

2685708311240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993041 (or 993037 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 2685708311240 in words is "two trillion, six hundred eighty-five billion, seven hundred eight million, three hundred eleven thousand, two hundred forty".