12542067742 has 8 divisors (see below), whose sum is σ = 19250615736. Its totient is φ = 6125195832.

The previous prime is 12542067737. The next prime is 12542067749. The reversal of 12542067742 is 24776024521.

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

It is a junction number, because it is equal to n+sod(n) for n = 12542067695 and 12542067704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542067749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72918913 + ... + 72919084.

It is an arithmetic number, because the mean of its divisors is an integer number (2406326967).

Almost surely, 2^12542067742 is an apocalyptic number.

12542067742 is a deficient number, since it is larger than the sum of its proper divisors (6708547994).

12542067742 is a wasteful number, since it uses less digits than its factorization.

12542067742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145838042.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 12542067742 in words is "twelve billion, five hundred forty-two million, sixty-seven thousand, seven hundred forty-two".