13644098578 has 16 divisors (see below), whose sum is σ = 23640043104. Its totient is φ = 5837047360.

The previous prime is 13644098521. The next prime is 13644098593. The reversal of 13644098578 is 87589044631.

It is a super-2 number, since 2×13644098578² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18240400 + ... + 18241147.

It is an arithmetic number, because the mean of its divisors is an integer number (1477502694).

Almost surely, 2^13644098578 is an apocalyptic number.

13644098578 is a deficient number, since it is larger than the sum of its proper divisors (9995944526).

13644098578 is a wasteful number, since it uses less digits than its factorization.

13644098578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36481577.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 13644098578 in words is "thirteen billion, six hundred forty-four million, ninety-eight thousand, five hundred seventy-eight".