14215923261 has 6 divisors (see below), whose sum is σ = 20534111390. Its totient is φ = 9477282168.

The previous prime is 14215923247. The next prime is 14215923289. The reversal of 14215923261 is 16232951241.

14215923261 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 592 + 3 + 2 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12236563161 + 1979360100 = 110619^2 + 44490^2 .

It is not a de Polignac number, because 14215923261 - 2⁷ = 14215923133 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 (14215923061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 789773506 + ... + 789773523.

Almost surely, 2^14215923261 is an apocalyptic number.

It is an amenable number.

14215923261 is a deficient number, since it is larger than the sum of its proper divisors (6318188129).

14215923261 is a wasteful number, since it uses less digits than its factorization.

14215923261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579547035 (or 1579547032 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The spelling of 14215923261 in words is "fourteen billion, two hundred fifteen million, nine hundred twenty-three thousand, two hundred sixty-one".