63500378308 has 12 divisors (see below), whose sum is σ = 112647931900. Its totient is φ = 31315254912.

The previous prime is 63500378267. The next prime is 63500378309. The reversal of 63500378308 is 80387300536.

It can be written as a sum of positive squares in 2 ways, for example, as 45502009344 + 17998368964 = 213312^2 + 134158^2 .

It is not an unprimeable number, because it can be changed into a prime (63500378309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108733233 + ... + 108733816.

Almost surely, 2^63500378308 is an apocalyptic number.

It is an amenable number.

63500378308 is a deficient number, since it is larger than the sum of its proper divisors (49147553592).

63500378308 is a wasteful number, since it uses less digits than its factorization.

63500378308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217467126 (or 217467124 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 63500378308 in words is "sixty-three billion, five hundred million, three hundred seventy-eight thousand, three hundred eight".