63503053782378 has 32 divisors (see below), whose sum is σ = 145181248575360. Its totient is φ = 18139803232320.

The previous prime is 63503053782361. The next prime is 63503053782379. The reversal of 63503053782378 is 87328735030536.

It is not an unprimeable number, because it can be changed into a prime (63503053782379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163404433 + ... + 163792596.

It is an arithmetic number, because the mean of its divisors is an integer number (4536914017980).

Almost surely, 2^{63503053782378} is an apocalyptic number.

63503053782378 is an abundant number, since it is smaller than the sum of its proper divisors (81678194792982).

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

63503053782378 is a wasteful number, since it uses less digits than its factorization.

63503053782378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327201662.

The product of its (nonzero) digits is 76204800, while the sum is 60.

The spelling of 63503053782378 in words is "sixty-three trillion, five hundred three billion, fifty-three million, seven hundred eighty-two thousand, three hundred seventy-eight".