2687548860 has 144 divisors (see below), whose sum is σ = 8627018400. Its totient is φ = 675343872.

The previous prime is 2687548849. The next prime is 2687548861. The reversal of 2687548860 is 688457862.

2687548860 is a `hidden beast` number, since 26 + 87 + 5 + 488 + 60 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2687548797 and 2687548806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687548861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 671746 + ... + 675734.

It is an arithmetic number, because the mean of its divisors is an integer number (59909850).

Almost surely, 2^2687548860 is an apocalyptic number.

2687548860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2687548860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4313509200).

2687548860 is an abundant number, since it is smaller than the sum of its proper divisors (5939469540).

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

2687548860 is a wasteful number, since it uses less digits than its factorization.

2687548860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220 (or 4215 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The square root of 2687548860 is about 51841.5746288633. The cubic root of 2687548860 is about 1390.3328671609.

The spelling of 2687548860 in words is "two billion, six hundred eighty-seven million, five hundred forty-eight thousand, eight hundred sixty".