13953853568 has 72 divisors (see below), whose sum is σ = 28477645455. Its totient is φ = 6810539008.

The previous prime is 13953853559. The next prime is 13953853577. The reversal of 13953853568 is 86535835931.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an interprime number because it is at equal distance from previous prime (13953853559) and next prime (13953853577).

It can be written as a sum of positive squares in 5 ways, for example, as 13850465344 + 103388224 = 117688^2 + 10168^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=83528.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 70831646 + ... + 70831842.

Almost surely, 2^13953853568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13953853568

13953853568 is an abundant number, since it is smaller than the sum of its proper divisors (14523791887).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13953853568 is an frugal number, since it uses more digits than its factorization.

13953853568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 252 counting only the distinct ones).

The product of its digits is 11664000, while the sum is 56.

The spelling of 13953853568 in words is "thirteen billion, nine hundred fifty-three million, eight hundred fifty-three thousand, five hundred sixty-eight".