63115128453 has 16 divisors (see below), whose sum is σ = 90670769280. Its totient is φ = 38821257024.

The previous prime is 63115128443. The next prime is 63115128469. The reversal of 63115128453 is 35482151136.

It is not a de Polignac number, because 63115128453 - 2⁶ = 63115128389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63115128413) 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, 310401 + ... + 471782.

It is an arithmetic number, because the mean of its divisors is an integer number (5666923080).

Almost surely, 2^63115128453 is an apocalyptic number.

It is an amenable number.

63115128453 is a deficient number, since it is larger than the sum of its proper divisors (27555640827).

63115128453 is a wasteful number, since it uses less digits than its factorization.

63115128453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784268.

The product of its digits is 86400, while the sum is 39.

Adding to 63115128453 its reverse (35482151136), we get a palindrome (98597279589).

The spelling of 63115128453 in words is "sixty-three billion, one hundred fifteen million, one hundred twenty-eight thousand, four hundred fifty-three".