2621170804 has 48 divisors (see below), whose sum is σ = 5485068288. Its totient is φ = 1071610848.

The previous prime is 2621170801. The next prime is 2621170817. The reversal of 2621170804 is 4080711262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621170801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241339 + ... + 251965.

It is an arithmetic number, because the mean of its divisors is an integer number (114272256).

Almost surely, 2^2621170804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2621170804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2742534144).

2621170804 is an abundant number, since it is smaller than the sum of its proper divisors (2863897484).

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

2621170804 is a wasteful number, since it uses less digits than its factorization.

2621170804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11044 (or 11042 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 2621170804 is about 51197.3710653194. The cubic root of 2621170804 is about 1378.7910023159.

The spelling of 2621170804 in words is "two billion, six hundred twenty-one million, one hundred seventy thousand, eight hundred four".