63808457253 has 16 divisors (see below), whose sum is σ = 85567075776. Its totient is φ = 42294510720.

The previous prime is 63808457243. The next prime is 63808457369. The reversal of 63808457253 is 35275480836.

It is a happy number.

It is not a de Polignac number, because 63808457253 - 2¹⁷ = 63808326181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63808457196 and 63808457205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63808457243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3104950 + ... + 3125432.

It is an arithmetic number, because the mean of its divisors is an integer number (5347942236).

Almost surely, 2^63808457253 is an apocalyptic number.

It is an amenable number.

63808457253 is a deficient number, since it is larger than the sum of its proper divisors (21758618523).

63808457253 is a wasteful number, since it uses less digits than its factorization.

63808457253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26404.

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 63808457253 in words is "sixty-three billion, eight hundred eight million, four hundred fifty-seven thousand, two hundred fifty-three".