14972146649 has 8 divisors (see below), whose sum is σ = 15389642952. Its totient is φ = 14559650560.

The previous prime is 14972146643. The next prime is 14972146697. The reversal of 14972146649 is 94664127941.

It can be written as a sum of positive squares in 4 ways, for example, as 794958025 + 14177188624 = 28195^2 + 119068^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14972146649 - 2¹² = 14972142553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14972146649.

It is not an unprimeable number, because it can be changed into a prime (14972146643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1243982 + ... + 1255959.

It is an arithmetic number, because the mean of its divisors is an integer number (1923705369).

Almost surely, 2^14972146649 is an apocalyptic number.

It is an amenable number.

14972146649 is a deficient number, since it is larger than the sum of its proper divisors (417496303).

14972146649 is a wasteful number, since it uses less digits than its factorization.

14972146649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500107.

The product of its digits is 2612736, while the sum is 53.

The spelling of 14972146649 in words is "fourteen billion, nine hundred seventy-two million, one hundred forty-six thousand, six hundred forty-nine".