13468913578 has 8 divisors (see below), whose sum is σ = 21391803972. Its totient is φ = 6338312256.

The previous prime is 13468913569. The next prime is 13468913599. The reversal of 13468913578 is 87531986431.

It can be written as a sum of positive squares in 2 ways, for example, as 12867045489 + 601868089 = 113433^2 + 24533^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198072225 + ... + 198072292.

Almost surely, 2^13468913578 is an apocalyptic number.

13468913578 is a deficient number, since it is larger than the sum of its proper divisors (7922890394).

13468913578 is a wasteful number, since it uses less digits than its factorization.

13468913578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396144536.

The product of its digits is 4354560, while the sum is 55.

The spelling of 13468913578 in words is "thirteen billion, four hundred sixty-eight million, nine hundred thirteen thousand, five hundred seventy-eight".