63731979360 has 960 divisors, whose sum is σ = 267841728000. Its totient is φ = 14320406016.

The previous prime is 63731979347. The next prime is 63731979383. The reversal of 63731979360 is 6397913736.

63731979360 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 (54).

It is a junction number, because it is equal to n+sod(n) for n = 63731979297 and 63731979306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1080203011 + ... + 1080203069.

It is an arithmetic number, because the mean of its divisors is an integer number (279001800).

Almost surely, 2^63731979360 is an apocalyptic number.

63731979360 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 63731979360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133920864000).

63731979360 is an abundant number, since it is smaller than the sum of its proper divisors (204109748640).

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

63731979360 is an frugal number, since it uses more digits than its factorization.

63731979360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 3857868, while the sum is 54.

The spelling of 63731979360 in words is "sixty-three billion, seven hundred thirty-one million, nine hundred seventy-nine thousand, three hundred sixty".