13978417562 has 8 divisors (see below), whose sum is σ = 21076267476. Its totient is φ = 6952995072.

The previous prime is 13978417561. The next prime is 13978417577. The reversal of 13978417562 is 26571487931.

13978417562 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 10924639441 + 3053778121 = 104521^2 + 55261^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13978417561) by changing a digit.

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, 18106373 + ... + 18107144.

Almost surely, 2^13978417562 is an apocalyptic number.

13978417562 is a deficient number, since it is larger than the sum of its proper divisors (7097849914).

13978417562 is a wasteful number, since it uses less digits than its factorization.

13978417562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36213712.

The product of its digits is 2540160, while the sum is 53.

The spelling of 13978417562 in words is "thirteen billion, nine hundred seventy-eight million, four hundred seventeen thousand, five hundred sixty-two".