63117331403523 has 16 divisors (see below), whose sum is σ = 88213899371136. Its totient is φ = 40097226980160.

The previous prime is 63117331403453. The next prime is 63117331403549. The reversal of 63117331403523 is 32530413371136.

It is not a de Polignac number, because 63117331403523 - 2²¹ = 63117329306371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63117331403323) 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, 5966843965 + ... + 5966854542.

It is an arithmetic number, because the mean of its divisors is an integer number (5513368710696).

Almost surely, 2^{63117331403523} is an apocalyptic number.

63117331403523 is a deficient number, since it is larger than the sum of its proper divisors (25096567967613).

63117331403523 is a wasteful number, since it uses less digits than its factorization.

63117331403523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11933698594.

The product of its (nonzero) digits is 408240, while the sum is 42.

Adding to 63117331403523 its reverse (32530413371136), we get a palindrome (95647744774659).

The spelling of 63117331403523 in words is "sixty-three trillion, one hundred seventeen billion, three hundred thirty-one million, four hundred three thousand, five hundred twenty-three".