14146827421 has 4 divisors (see below), whose sum is σ = 14148413344. Its totient is φ = 14145241500.

The previous prime is 14146827407. The next prime is 14146827503. The reversal of 14146827421 is 12472864141.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 14146827421 - 2⁷ = 14146827293 is a prime.

It is a super-2 number, since 2×14146827421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14146827221) 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, 779505 + ... + 797446.

It is an arithmetic number, because the mean of its divisors is an integer number (3537103336).

Almost surely, 2^14146827421 is an apocalyptic number.

It is an amenable number.

14146827421 is a deficient number, since it is larger than the sum of its proper divisors (1585923).

14146827421 is an equidigital number, since it uses as much as digits as its factorization.

14146827421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585922.

The product of its digits is 86016, while the sum is 40.

The spelling of 14146827421 in words is "fourteen billion, one hundred forty-six million, eight hundred twenty-seven thousand, four hundred twenty-one".