63948157312 has 128 divisors (see below), whose sum is σ = 142898817600. Its totient is φ = 28310446080.

The previous prime is 63948157297. The next prime is 63948157319. The reversal of 63948157312 is 21375184936.

63948157312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63948157319) 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, 4364014 + ... + 4378642.

Almost surely, 2^63948157312 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 63948157312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71449408800).

63948157312 is an abundant number, since it is smaller than the sum of its proper divisors (78950660288).

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

63948157312 is a wasteful number, since it uses less digits than its factorization.

63948157312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14764 (or 14752 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The spelling of 63948157312 in words is "sixty-three billion, nine hundred forty-eight million, one hundred fifty-seven thousand, three hundred twelve".