63605819140 has 12 divisors (see below), whose sum is σ = 133572220236. Its totient is φ = 25442327648.

The previous prime is 63605819117. The next prime is 63605819149. The reversal of 63605819140 is 4191850636.

It can be written as a sum of positive squares in 2 ways, for example, as 49771825216 + 13833993924 = 223096^2 + 117618^2 .

It is not an unprimeable number, because it can be changed into a prime (63605819149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590145459 + ... + 1590145498.

It is an arithmetic number, because the mean of its divisors is an integer number (11131018353).

Almost surely, 2^63605819140 is an apocalyptic number.

It is an amenable number.

63605819140 is an abundant number, since it is smaller than the sum of its proper divisors (69966401096).

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

63605819140 is a wasteful number, since it uses less digits than its factorization.

63605819140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180290966 (or 3180290964 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 63605819140 in words is "sixty-three billion, six hundred five million, eight hundred nineteen thousand, one hundred forty".