2611530140 has 48 divisors (see below), whose sum is σ = 5811178464. Its totient is φ = 982425600.

The previous prime is 2611530121. The next prime is 2611530143. The reversal of 2611530140 is 410351162.

2611530140 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 not an unprimeable number, because it can be changed into a prime (2611530143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705695 + ... + 709385.

It is an arithmetic number, because the mean of its divisors is an integer number (121066218).

Almost surely, 2^2611530140 is an apocalyptic number.

2611530140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2611530140 is an abundant number, since it is smaller than the sum of its proper divisors (3199648324).

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

2611530140 is a wasteful number, since it uses less digits than its factorization.

2611530140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5798 (or 5796 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2611530140 is about 51103.1323893164. The cubic root of 2611530140 is about 1377.0985282640.

The spelling of 2611530140 in words is "two billion, six hundred eleven million, five hundred thirty thousand, one hundred forty".