63545253243 has 16 divisors (see below), whose sum is σ = 86350711296. Its totient is φ = 41555435040.

The previous prime is 63545253217. The next prime is 63545253259. The reversal of 63545253243 is 34235254536.

It is not a de Polignac number, because 63545253243 - 2²⁰ = 63544204667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63545253195 and 63545253204.

It is not an unprimeable number, because it can be changed into a prime (63545253943) 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, 405921 + ... + 540242.

It is an arithmetic number, because the mean of its divisors is an integer number (5396919456).

Almost surely, 2^63545253243 is an apocalyptic number.

63545253243 is a deficient number, since it is larger than the sum of its proper divisors (22805458053).

63545253243 is a wasteful number, since it uses less digits than its factorization.

63545253243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946594.

The product of its digits is 1296000, while the sum is 42.

The spelling of 63545253243 in words is "sixty-three billion, five hundred forty-five million, two hundred fifty-three thousand, two hundred forty-three".