13935648481 has 4 divisors (see below), whose sum is σ = 13936023232. Its totient is φ = 13935273732.

The previous prime is 13935648479. The next prime is 13935648491. The reversal of 13935648481 is 18484653931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13935648481 - 2¹ = 13935648479 is a prime.

It is a super-2 number, since 2×13935648481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13935648491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124581 + ... + 208306.

It is an arithmetic number, because the mean of its divisors is an integer number (3484005808).

Almost surely, 2^13935648481 is an apocalyptic number.

It is an amenable number.

13935648481 is a deficient number, since it is larger than the sum of its proper divisors (374751).

13935648481 is an equidigital number, since it uses as much as digits as its factorization.

13935648481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374750.

The product of its digits is 2488320, while the sum is 52.

The spelling of 13935648481 in words is "thirteen billion, nine hundred thirty-five million, six hundred forty-eight thousand, four hundred eighty-one".