14909478629 has 4 divisors (see below), whose sum is σ = 14923531980. Its totient is φ = 14895425280.

The previous prime is 14909478589. The next prime is 14909478631. The reversal of 14909478629 is 92687490941.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10433601025 + 4475877604 = 102145^2 + 66902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14909478629 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 (14909478229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7025084 + ... + 7027205.

It is an arithmetic number, because the mean of its divisors is an integer number (3730882995).

Almost surely, 2^14909478629 is an apocalyptic number.

It is an amenable number.

14909478629 is a deficient number, since it is larger than the sum of its proper divisors (14053351).

14909478629 is a wasteful number, since it uses less digits than its factorization.

14909478629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14053350.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 14909478629 in words is "fourteen billion, nine hundred nine million, four hundred seventy-eight thousand, six hundred twenty-nine".