11421647627 has 4 divisors (see below), whose sum is σ = 12300235920. Its totient is φ = 10543059336.

The previous prime is 11421647621. The next prime is 11421647641. The reversal of 11421647627 is 72674612411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11421647627 - 2⁶ = 11421647563 is a prime.

It is a super-2 number, since 2×11421647627² (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 (11421647621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439294127 + ... + 439294152.

It is an arithmetic number, because the mean of its divisors is an integer number (3075058980).

Almost surely, 2^11421647627 is an apocalyptic number.

11421647627 is a deficient number, since it is larger than the sum of its proper divisors (878588293).

11421647627 is an equidigital number, since it uses as much as digits as its factorization.

11421647627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878588292.

The product of its digits is 112896, while the sum is 41.

The spelling of 11421647627 in words is "eleven billion, four hundred twenty-one million, six hundred forty-seven thousand, six hundred twenty-seven".