12650869842 has 24 divisors (see below), whose sum is σ = 27397743984. Its totient is φ = 3892575024.

The previous prime is 12650869831. The next prime is 12650869843. The reversal of 12650869842 is 24896805621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12650869843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6237088 + ... + 6239115.

It is an arithmetic number, because the mean of its divisors is an integer number (1141572666).

Almost surely, 2^12650869842 is an apocalyptic number.

12650869842 is an abundant number, since it is smaller than the sum of its proper divisors (14746874142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12650869842 is a wasteful number, since it uses less digits than its factorization.

12650869842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12476234 (or 12476221 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 12650869842 in words is "twelve billion, six hundred fifty million, eight hundred sixty-nine thousand, eight hundred forty-two".