12642350071 has 8 divisors (see below), whose sum is σ = 13871723040. Its totient is φ = 11449674912.

The previous prime is 12642350047. The next prime is 12642350153. The reversal of 12642350071 is 17005324621.

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

It is not a de Polignac number, because 12642350071 - 2²⁹ = 12105479159 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 (12642350471) 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, 9173731 + ... + 9175108.

It is an arithmetic number, because the mean of its divisors is an integer number (1733965380).

Almost surely, 2^12642350071 is an apocalyptic number.

12642350071 is a deficient number, since it is larger than the sum of its proper divisors (1229372969).

12642350071 is a wasteful number, since it uses less digits than its factorization.

12642350071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18348905.

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 12642350071 its reverse (17005324621), we get a palindrome (29647674692).

The spelling of 12642350071 in words is "twelve billion, six hundred forty-two million, three hundred fifty thousand, seventy-one".