63465880771138 has 4 divisors (see below), whose sum is σ = 95198821156710. Its totient is φ = 31732940385568.

The previous prime is 63465880771133. The next prime is 63465880771141. The reversal of 63465880771138 is 83117708856436.

63465880771138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62349863893249 + 1116016877889 = 7896193^2 + 1056417^2 .

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (63465880771133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15866470192783 + ... + 15866470192786.

Almost surely, 2^{63465880771138} is an apocalyptic number.

63465880771138 is a deficient number, since it is larger than the sum of its proper divisors (31732940385572).

63465880771138 is a wasteful number, since it uses less digits than its factorization.

63465880771138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31732940385571.

The product of its (nonzero) digits is 162570240, while the sum is 67.

The spelling of 63465880771138 in words is "sixty-three trillion, four hundred sixty-five billion, eight hundred eighty million, seven hundred seventy-one thousand, one hundred thirty-eight".