2613603540 has 96 divisors (see below), whose sum is σ = 7592618880. Its totient is φ = 670957056.

The previous prime is 2613603533. The next prime is 2613603541. The reversal of 2613603540 is 453063162.

2613603540 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2613603498 and 2613603507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2613603541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 647007 + ... + 651033.

It is an arithmetic number, because the mean of its divisors is an integer number (79089780).

Almost surely, 2^2613603540 is an apocalyptic number.

2613603540 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 2613603540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3796309440).

2613603540 is an abundant number, since it is smaller than the sum of its proper divisors (4979015340).

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

2613603540 is a wasteful number, since it uses less digits than its factorization.

2613603540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441 (or 4439 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 2613603540 is about 51123.4147920500. The cubic root of 2613603540 is about 1377.4628767020.

The spelling of 2613603540 in words is "two billion, six hundred thirteen million, six hundred three thousand, five hundred forty".