63117636471456 has 192 divisors, whose sum is σ = 190063832894208. Its totient is φ = 17965997457408.

The previous prime is 63117636471401. The next prime is 63117636471457. The reversal of 63117636471456 is 65417463671136.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 63117636471456.

It is not an unprimeable number, because it can be changed into a prime (63117636471457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259155370 + ... + 259398806.

It is an arithmetic number, because the mean of its divisors is an integer number (989915796324).

Almost surely, 2^{63117636471456} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63117636471456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95031916447104).

63117636471456 is an abundant number, since it is smaller than the sum of its proper divisors (126946196422752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63117636471456 is a wasteful number, since it uses less digits than its factorization.

63117636471456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244903 (or 244895 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 60.

The spelling of 63117636471456 in words is "sixty-three trillion, one hundred seventeen billion, six hundred thirty-six million, four hundred seventy-one thousand, four hundred fifty-six".