14525423721 has 12 divisors (see below), whose sum is σ = 21086603200. Its totient is φ = 9634953240.

The previous prime is 14525423719. The next prime is 14525423741. The reversal of 14525423721 is 12732452541.

14525423721 is a `hidden beast` number, since 1 + 45 + 2 + 542 + 3 + 72 + 1 = 666.

It is not a de Polignac number, because 14525423721 - 2¹ = 14525423719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14525423741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4053325 + ... + 4056906.

Almost surely, 2^14525423721 is an apocalyptic number.

It is an amenable number.

14525423721 is a deficient number, since it is larger than the sum of its proper divisors (6561179479).

14525423721 is a wasteful number, since it uses less digits than its factorization.

14525423721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8110436 (or 8110433 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The spelling of 14525423721 in words is "fourteen billion, five hundred twenty-five million, four hundred twenty-three thousand, seven hundred twenty-one".