63771188490240 has 832 divisors, whose sum is σ = 254788490068992. Its totient is φ = 13230460108800.

The previous prime is 63771188490223. The next prime is 63771188490313. The reversal of 63771188490240 is 4209488117736.

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, 3127101484 + ... + 3127121876.

Almost surely, 2^{63771188490240} is an apocalyptic number.

63771188490240 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 63771188490240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127394245034496).

63771188490240 is an abundant number, since it is smaller than the sum of its proper divisors (191017301578752).

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

63771188490240 is a wasteful number, since it uses less digits than its factorization.

63771188490240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21104 (or 21082 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 63771188490240 in words is "sixty-three trillion, seven hundred seventy-one billion, one hundred eighty-eight million, four hundred ninety thousand, two hundred forty".