11427451463647 has 4 divisors (see below), whose sum is σ = 11427458332000. Its totient is φ = 11427444595296.

The previous prime is 11427451463633. The next prime is 11427451463669. The reversal of 11427451463647 is 74636415472411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11427451463647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11427451464647) 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, 809479 + ... + 4848727.

It is an arithmetic number, because the mean of its divisors is an integer number (2856864583000).

Almost surely, 2^{11427451463647} is an apocalyptic number.

11427451463647 is a deficient number, since it is larger than the sum of its proper divisors (6868353).

11427451463647 is an equidigital number, since it uses as much as digits as its factorization.

11427451463647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868352.

The product of its digits is 13547520, while the sum is 55.

The spelling of 11427451463647 in words is "eleven trillion, four hundred twenty-seven billion, four hundred fifty-one million, four hundred sixty-three thousand, six hundred forty-seven".