63138928123346 has 8 divisors (see below), whose sum is σ = 94708488505980. Its totient is φ = 31569431954688.

The previous prime is 63138928123291. The next prime is 63138928123399. The reversal of 63138928123346 is 64332182983136.

It can be written as a sum of positive squares in 2 ways, for example, as 62727904809025 + 411023314321 = 7920095^2 + 641111^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13515071 + ... + 17576546.

Almost surely, 2^{63138928123346} is an apocalyptic number.

63138928123346 is a deficient number, since it is larger than the sum of its proper divisors (31569560382634).

63138928123346 is a wasteful number, since it uses less digits than its factorization.

63138928123346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32106988.

The product of its digits is 26873856, while the sum is 59.

The spelling of 63138928123346 in words is "sixty-three trillion, one hundred thirty-eight billion, nine hundred twenty-eight million, one hundred twenty-three thousand, three hundred forty-six".