14505515443421 has 8 divisors (see below), whose sum is σ = 14675527460160. Its totient is φ = 14335659620128.

The previous prime is 14505515443417. The next prime is 14505515443483. The reversal of 14505515443421 is 12434451550541.

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

It is a cyclic number.

It is not a de Polignac number, because 14505515443421 - 2² = 14505515443417 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 (14505515443121) 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, 38861531 + ... + 39233016.

It is an arithmetic number, because the mean of its divisors is an integer number (1834440932520).

Almost surely, 2^{14505515443421} is an apocalyptic number.

It is an amenable number.

14505515443421 is a deficient number, since it is larger than the sum of its proper divisors (170012016739).

14505515443421 is an equidigital number, since it uses as much as digits as its factorization.

14505515443421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78096723.

The product of its (nonzero) digits is 960000, while the sum is 44.

Adding to 14505515443421 its reverse (12434451550541), we get a palindrome (26939966993962).

The spelling of 14505515443421 in words is "fourteen trillion, five hundred five billion, five hundred fifteen million, four hundred forty-three thousand, four hundred twenty-one".