2638253853 has 48 divisors (see below), whose sum is σ = 4050708480. Its totient is φ = 1652234400.

The previous prime is 2638253819. The next prime is 2638253861. The reversal of 2638253853 is 3583528362.

2638253853 is a `hidden beast` number, since 2 + 63 + 8 + 2 + 538 + 53 = 666.

It is not a de Polignac number, because 2638253853 - 2¹⁰ = 2638252829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2638253799 and 2638253808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638258853) 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, 1365298 + ... + 1367228.

It is an arithmetic number, because the mean of its divisors is an integer number (84389760).

Almost surely, 2^2638253853 is an apocalyptic number.

It is an amenable number.

2638253853 is a deficient number, since it is larger than the sum of its proper divisors (1412454627).

2638253853 is a wasteful number, since it uses less digits than its factorization.

2638253853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110 (or 2107 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 2638253853 is about 51363.9353340454. The cubic root of 2638253853 is about 1381.7798663019.

The spelling of 2638253853 in words is "two billion, six hundred thirty-eight million, two hundred fifty-three thousand, eight hundred fifty-three".