13727204281 has 4 divisors (see below), whose sum is σ = 15688233472. Its totient is φ = 11766175092.

The previous prime is 13727204279. The next prime is 13727204297. The reversal of 13727204281 is 18240272731.

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 not a de Polignac number, because 13727204281 - 2¹ = 13727204279 is a prime.

It is a super-2 number, since 2×13727204281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13727204281.

It is not an unprimeable number, because it can be changed into a prime (13727294281) 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, 980514585 + ... + 980514598.

It is an arithmetic number, because the mean of its divisors is an integer number (3922058368).

Almost surely, 2^13727204281 is an apocalyptic number.

It is an amenable number.

13727204281 is a deficient number, since it is larger than the sum of its proper divisors (1961029191).

13727204281 is an equidigital number, since it uses as much as digits as its factorization.

13727204281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961029190.

The product of its (nonzero) digits is 37632, while the sum is 37.

The spelling of 13727204281 in words is "thirteen billion, seven hundred twenty-seven million, two hundred four thousand, two hundred eighty-one".