12625139442 has 16 divisors (see below), whose sum is σ = 25837495200. Its totient is φ = 4110510432.

The previous prime is 12625139441. The next prime is 12625139447. The reversal of 12625139442 is 24493152621.

It is a self number, because there is not a number n which added to its sum of digits gives 12625139442.

It is not an unprimeable number, because it can be changed into a prime (12625139441) 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, 24467067 + ... + 24467582.

It is an arithmetic number, because the mean of its divisors is an integer number (1614843450).

Almost surely, 2^12625139442 is an apocalyptic number.

12625139442 is an abundant number, since it is smaller than the sum of its proper divisors (13212355758).

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

12625139442 is a wasteful number, since it uses less digits than its factorization.

12625139442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48934697.

The product of its digits is 103680, while the sum is 39.

The spelling of 12625139442 in words is "twelve billion, six hundred twenty-five million, one hundred thirty-nine thousand, four hundred forty-two".