2681537820 has 96 divisors (see below), whose sum is σ = 8346777600. Its totient is φ = 638772480.

The previous prime is 2681537819. The next prime is 2681537893. The reversal of 2681537820 is 287351862.

2681537820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31270 + ... + 79629.

It is an arithmetic number, because the mean of its divisors is an integer number (86945600).

Almost surely, 2^2681537820 is an apocalyptic number.

2681537820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2681537820 is an abundant number, since it is smaller than the sum of its proper divisors (5665239780).

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

2681537820 is a wasteful number, since it uses less digits than its factorization.

2681537820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110955 (or 110953 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 2681537820 is about 51783.5670845491. The cubic root of 2681537820 is about 1389.2955421462.

The spelling of 2681537820 in words is "two billion, six hundred eighty-one million, five hundred thirty-seven thousand, eight hundred twenty".