63820288240 has 40 divisors (see below), whose sum is σ = 149465277360. Its totient is φ = 25341774336.

The previous prime is 63820288237. The next prime is 63820288249. The reversal of 63820288240 is 4288202836.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63820288249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2900550 + ... + 2922469.

It is an arithmetic number, because the mean of its divisors is an integer number (3736631934).

Almost surely, 2^63820288240 is an apocalyptic number.

It is an amenable number.

63820288240 is an abundant number, since it is smaller than the sum of its proper divisors (85644989120).

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

63820288240 is a wasteful number, since it uses less digits than its factorization.

63820288240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823169 (or 5823163 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 63820288240 in words is "sixty-three billion, eight hundred twenty million, two hundred eighty-eight thousand, two hundred forty".