63147061645540 has 24 divisors (see below), whose sum is σ = 132795865916280. Its totient is φ = 25223198665728.

The previous prime is 63147061645523. The next prime is 63147061645561. The reversal of 63147061645540 is 4554616074136.

It can be written as a sum of positive squares in 4 ways, for example, as 5460363174564 + 57686698470976 = 2336742^2 + 7595176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2226609997 + ... + 2226638356.

It is an arithmetic number, because the mean of its divisors is an integer number (5533161079845).

Almost surely, 2^{63147061645540} is an apocalyptic number.

It is an amenable number.

63147061645540 is an abundant number, since it is smaller than the sum of its proper divisors (69648804270740).

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

63147061645540 is a wasteful number, since it uses less digits than its factorization.

63147061645540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453249071 (or 4453249069 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 63147061645540 in words is "sixty-three trillion, one hundred forty-seven billion, sixty-one million, six hundred forty-five thousand, five hundred forty".