63612791963136 has 800 divisors, whose sum is σ = 221782230841248. Its totient is φ = 17972385546240.

The previous prime is 63612791963089. The next prime is 63612791963167. The reversal of 63612791963136 is 63136919721636.

63612791963136 is a `hidden beast` number, since 6 + 3 + 6 + 127 + 9 + 196 + 313 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 375693151 + ... + 375862433.

Almost surely, 2^{63612791963136} 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 63612791963136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110891115420624).

63612791963136 is an abundant number, since it is smaller than the sum of its proper divisors (158169438878112).

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

63612791963136 is a wasteful number, since it uses less digits than its factorization.

63612791963136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169384 (or 169359 counting only the distinct ones).

The product of its digits is 39680928, while the sum is 63.

The spelling of 63612791963136 in words is "sixty-three trillion, six hundred twelve billion, seven hundred ninety-one million, nine hundred sixty-three thousand, one hundred thirty-six".