63138930278 has 8 divisors (see below), whose sum is σ = 94729146672. Its totient is φ = 31562548056.

The previous prime is 63138930271. The next prime is 63138930293. The reversal of 63138930278 is 87203983136.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63138930271) 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 in 3 ways as a sum of consecutive naturals, for example, 3447125 + ... + 3465392.

It is an arithmetic number, because the mean of its divisors is an integer number (11841143334).

Almost surely, 2^63138930278 is an apocalyptic number.

63138930278 is a deficient number, since it is larger than the sum of its proper divisors (31590216394).

63138930278 is a wasteful number, since it uses less digits than its factorization.

63138930278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6917086.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 63138930278 in words is "sixty-three billion, one hundred thirty-eight million, nine hundred thirty thousand, two hundred seventy-eight".