63834796656 has 80 divisors (see below), whose sum is σ = 183345383200. Its totient is φ = 21264809472.

The previous prime is 63834796609. The next prime is 63834796657. The reversal of 63834796656 is 65669743836.

It is a happy number.

It is a super-2 number, since 2×63834796656² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63834796593 and 63834796602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63834796657) 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, 649170 + ... + 741006.

It is an arithmetic number, because the mean of its divisors is an integer number (2291817290).

Almost surely, 2^63834796656 is an apocalyptic number.

It is an amenable number.

63834796656 is an abundant number, since it is smaller than the sum of its proper divisors (119510586544).

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

63834796656 is a wasteful number, since it uses less digits than its factorization.

63834796656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93463 (or 93451 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 63.

The spelling of 63834796656 in words is "sixty-three billion, eight hundred thirty-four million, seven hundred ninety-six thousand, six hundred fifty-six".