63547260128 has 144 divisors (see below), whose sum is σ = 142695710640. Its totient is φ = 27803381760.

The previous prime is 63547260113. The next prime is 63547260169. The reversal of 63547260128 is 82106274536.

It is a super-3 number, since 3×63547260128³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48620051 + ... + 48621357.

It is an arithmetic number, because the mean of its divisors is an integer number (990942435).

Almost surely, 2^63547260128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63547260128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71347855320).

63547260128 is an abundant number, since it is smaller than the sum of its proper divisors (79148450512).

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

63547260128 is a wasteful number, since it uses less digits than its factorization.

63547260128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 63547260128 in words is "sixty-three billion, five hundred forty-seven million, two hundred sixty thousand, one hundred twenty-eight".