14012640625 has 21 divisors (see below), whose sum is σ = 17534091967. Its totient is φ = 11198275000.

The previous prime is 14012640623. The next prime is 14012640647. The reversal of 14012640625 is 52604621041.

It is a happy number.

The square root of 14012640625 is 118375.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 3 ways, for example, as 12276418401 + 1736222224 = 110799^2 + 41668^2 .

It is not a de Polignac number, because 14012640625 - 2¹ = 14012640623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14012640623) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 14796402 + ... + 14797348.

Almost surely, 2^14012640625 is an apocalyptic number.

14012640625 is the 118375-th square number.

14012640625 is the 59188-th centered octagonal number.

It is an amenable number.

14012640625 is a deficient number, since it is larger than the sum of its proper divisors (3521451342).

14012640625 is an frugal number, since it uses more digits than its factorization.

14012640625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 14012640625 in words is "fourteen billion, twelve million, six hundred forty thousand, six hundred twenty-five".