2543685012 has 48 divisors (see below), whose sum is σ = 7194264000. Its totient is φ = 770813280.

The previous prime is 2543684987. The next prime is 2543685041. The reversal of 2543685012 is 2105863452.

2543685012 is a `hidden beast` number, since 2 + 543 + 68 + 50 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1069387 + ... + 1071762.

It is an arithmetic number, because the mean of its divisors is an integer number (149880500).

Almost surely, 2^2543685012 is an apocalyptic number.

2543685012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2543685012 is an abundant number, since it is smaller than the sum of its proper divisors (4650578988).

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

2543685012 is a wasteful number, since it uses less digits than its factorization.

2543685012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141173 (or 2141165 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 2543685012 is about 50434.9582333524. The cubic root of 2543685012 is about 1365.0684955364.

The spelling of 2543685012 in words is "two billion, five hundred forty-three million, six hundred eighty-five thousand, twelve".