63134736240 has 160 divisors (see below), whose sum is σ = 202045282560. Its totient is φ = 16298569728.

The previous prime is 63134736239. The next prime is 63134736253. The reversal of 63134736240 is 4263743136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1139091 + ... + 1193229.

It is an arithmetic number, because the mean of its divisors is an integer number (1262783016).

Almost surely, 2^63134736240 is an apocalyptic number.

63134736240 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 63134736240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101022641280).

63134736240 is an abundant number, since it is smaller than the sum of its proper divisors (138910546320).

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

63134736240 is a wasteful number, since it uses less digits than its factorization.

63134736240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54311 (or 54305 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 39.

The spelling of 63134736240 in words is "sixty-three billion, one hundred thirty-four million, seven hundred thirty-six thousand, two hundred forty".