63949159680 has 576 divisors, whose sum is σ = 243025778688. Its totient is φ = 14027489280.

The previous prime is 63949159669. The next prime is 63949159699. The reversal of 63949159680 is 8695194936.

63949159680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70505787 + ... + 70506693.

Almost surely, 2^63949159680 is an apocalyptic number.

63949159680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63949159680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121512889344).

63949159680 is an abundant number, since it is smaller than the sum of its proper divisors (179076619008).

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

63949159680 is a wasteful number, since it uses less digits than its factorization.

63949159680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 60.

The spelling of 63949159680 in words is "sixty-three billion, nine hundred forty-nine million, one hundred fifty-nine thousand, six hundred eighty".