63689902080 has 576 divisors, whose sum is σ = 245365848000. Its totient is φ = 14046068736.

The previous prime is 63689902061. The next prime is 63689902091. The reversal of 63689902080 is 8020998636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43652391 + ... + 43653849.

It is an arithmetic number, because the mean of its divisors is an integer number (425982375).

Almost surely, 2^63689902080 is an apocalyptic number.

63689902080 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 63689902080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122682924000).

63689902080 is an abundant number, since it is smaller than the sum of its proper divisors (181675945920).

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

63689902080 is a wasteful number, since it uses less digits than its factorization.

63689902080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532 (or 1505 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 63689902080 in words is "sixty-three billion, six hundred eighty-nine million, nine hundred two thousand, eighty".