14131221464 has 8 divisors (see below), whose sum is σ = 26496040260. Its totient is φ = 7065610728.

The previous prime is 14131221449. The next prime is 14131221469. The reversal of 14131221464 is 46412213141.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×14131221464² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14131221469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 883201334 + ... + 883201349.

Almost surely, 2^14131221464 is an apocalyptic number.

It is an amenable number.

14131221464 is a deficient number, since it is larger than the sum of its proper divisors (12364818796).

14131221464 is a wasteful number, since it uses less digits than its factorization.

14131221464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766402689 (or 1766402685 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The spelling of 14131221464 in words is "fourteen billion, one hundred thirty-one million, two hundred twenty-one thousand, four hundred sixty-four".