14256345521 has 8 divisors (see below), whose sum is σ = 15556628064. Its totient is φ = 12956771520.

The previous prime is 14256345491. The next prime is 14256345527. The reversal of 14256345521 is 12554365241.

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

It is not a de Polignac number, because 14256345521 - 2¹⁰ = 14256344497 is a prime.

It is a super-2 number, since 2×14256345521² (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 (14256345527) 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, 134615 + ... + 215948.

It is an arithmetic number, because the mean of its divisors is an integer number (1944578508).

Almost surely, 2^14256345521 is an apocalyptic number.

14256345521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14256345521 is a deficient number, since it is larger than the sum of its proper divisors (1300282543).

14256345521 is a wasteful number, since it uses less digits than its factorization.

14256345521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354271.

The product of its digits is 144000, while the sum is 38.

The spelling of 14256345521 in words is "fourteen billion, two hundred fifty-six million, three hundred forty-five thousand, five hundred twenty-one".