14215003638431 has 4 divisors (see below), whose sum is σ = 14215135037664. Its totient is φ = 14214872239200.

The previous prime is 14215003638413. The next prime is 14215003638461. The reversal of 14215003638431 is 13483630051241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14215003638431 is a prime.

It is a super-2 number, since 2×14215003638431² (a number of 27 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 (14215003638401) 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, 65537210 + ... + 65753751.

It is an arithmetic number, because the mean of its divisors is an integer number (3553783759416).

Almost surely, 2^{14215003638431} is an apocalyptic number.

14215003638431 is a deficient number, since it is larger than the sum of its proper divisors (131399233).

14215003638431 is a wasteful number, since it uses less digits than its factorization.

14215003638431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131399232.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 14215003638431 its reverse (13483630051241), we get a palindrome (27698633689672).

The spelling of 14215003638431 in words is "fourteen trillion, two hundred fifteen billion, three million, six hundred thirty-eight thousand, four hundred thirty-one".