13972145506 has 8 divisors (see below), whose sum is σ = 22863510864. Its totient is φ = 6350975220.

The previous prime is 13972145491. The next prime is 13972145533. The reversal of 13972145506 is 60554127931.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317548740 + ... + 317548783.

It is an arithmetic number, because the mean of its divisors is an integer number (2857938858).

Almost surely, 2^13972145506 is an apocalyptic number.

13972145506 is a deficient number, since it is larger than the sum of its proper divisors (8891365358).

13972145506 is a wasteful number, since it uses less digits than its factorization.

13972145506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635097536.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 13972145506 in words is "thirteen billion, nine hundred seventy-two million, one hundred forty-five thousand, five hundred six".