2611868490 has 432 divisors, whose sum is σ = 9046791936. Its totient is φ = 531178560.

The previous prime is 2611868489. The next prime is 2611868507. The reversal of 2611868490 is 948681162.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 55571647 + ... + 55571693.

It is an arithmetic number, because the mean of its divisors is an integer number (20941648).

Almost surely, 2^2611868490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2611868490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4523395968).

2611868490 is an abundant number, since it is smaller than the sum of its proper divisors (6434923446).

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

2611868490 is an equidigital number, since it uses as much as digits as its factorization.

2611868490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 2611868490 is about 51106.4427445308. The cubic root of 2611868490 is about 1377.1579980181.

The spelling of 2611868490 in words is "two billion, six hundred eleven million, eight hundred sixty-eight thousand, four hundred ninety".