2621315853 has 48 divisors (see below), whose sum is σ = 4216919616. Its totient is φ = 1558759680.

The previous prime is 2621315831. The next prime is 2621315881. The reversal of 2621315853 is 3585131262.

2621315853 is a `hidden beast` number, since 2 + 62 + 13 + 1 + 585 + 3 = 666.

2621315853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2621315853 - 2¹² = 2621311757 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621325853) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 510726 + ... + 515832.

It is an arithmetic number, because the mean of its divisors is an integer number (87852492).

Almost surely, 2^2621315853 is an apocalyptic number.

It is an amenable number.

2621315853 is a deficient number, since it is larger than the sum of its proper divisors (1595603763).

2621315853 is a wasteful number, since it uses less digits than its factorization.

2621315853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274 (or 5271 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 2621315853 is about 51198.7876125988. The cubic root of 2621315853 is about 1378.8164347889.

The spelling of 2621315853 in words is "two billion, six hundred twenty-one million, three hundred fifteen thousand, eight hundred fifty-three".