13645454427 has 32 divisors (see below), whose sum is σ = 22061180160. Its totient is φ = 8267002560.

The previous prime is 13645454393. The next prime is 13645454441. The reversal of 13645454427 is 72445454631.

13645454427 is a `hidden beast` number, since 1 + 3 + 64 + 545 + 4 + 42 + 7 = 666.

It is not a de Polignac number, because 13645454427 - 2⁶ = 13645454363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13645454497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1046983 + ... + 1059935.

It is an arithmetic number, because the mean of its divisors is an integer number (689411880).

Almost surely, 2^13645454427 is an apocalyptic number.

13645454427 is a deficient number, since it is larger than the sum of its proper divisors (8415725733).

13645454427 is a wasteful number, since it uses less digits than its factorization.

13645454427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16520 (or 16514 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 45.

The spelling of 13645454427 in words is "thirteen billion, six hundred forty-five million, four hundred fifty-four thousand, four hundred twenty-seven".