13246384978 has 8 divisors (see below), whose sum is σ = 19946891772. Its totient is φ = 6597421056.

The previous prime is 13246384901. The next prime is 13246384981. The reversal of 13246384978 is 87948364231.

13246384978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13201320609 + 45064369 = 114897^2 + 6713^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12885075 + ... + 12886102.

Almost surely, 2^13246384978 is an apocalyptic number.

13246384978 is a deficient number, since it is larger than the sum of its proper divisors (6700506794).

13246384978 is a wasteful number, since it uses less digits than its factorization.

13246384978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25771436.

The product of its digits is 6967296, while the sum is 55.

The spelling of 13246384978 in words is "thirteen billion, two hundred forty-six million, three hundred eighty-four thousand, nine hundred seventy-eight".