14970639643 has 4 divisors (see below), whose sum is σ = 14971064760. Its totient is φ = 14970214528.

The previous prime is 14970639623. The next prime is 14970639707. The reversal of 14970639643 is 34693607941.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14970639643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14970639613) 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, 154438 + ... + 231931.

It is an arithmetic number, because the mean of its divisors is an integer number (3742766190).

Almost surely, 2^14970639643 is an apocalyptic number.

14970639643 is a deficient number, since it is larger than the sum of its proper divisors (425117).

14970639643 is an equidigital number, since it uses as much as digits as its factorization.

14970639643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425116.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 14970639643 in words is "fourteen billion, nine hundred seventy million, six hundred thirty-nine thousand, six hundred forty-three".