11427605421 has 8 divisors (see below), whose sum is σ = 15238650720. Its totient is φ = 7617481872.

The previous prime is 11427605417. The next prime is 11427605473. The reversal of 11427605421 is 12450672411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11427605421 - 2² = 11427605417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11427605491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200970 + ... + 251483.

It is an arithmetic number, because the mean of its divisors is an integer number (1904831340).

Almost surely, 2^11427605421 is an apocalyptic number.

It is an amenable number.

11427605421 is a deficient number, since it is larger than the sum of its proper divisors (3811045299).

11427605421 is an equidigital number, since it uses as much as digits as its factorization.

11427605421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460875.

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 11427605421 in words is "eleven billion, four hundred twenty-seven million, six hundred five thousand, four hundred twenty-one".