12402351742 has 8 divisors (see below), whose sum is σ = 20294757432. Its totient is φ = 5637432600.

The previous prime is 12402351719. The next prime is 12402351743. The reversal of 12402351742 is 24715320421.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402351743) 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, 281871609 + ... + 281871652.

It is an arithmetic number, because the mean of its divisors is an integer number (2536844679).

Almost surely, 2^12402351742 is an apocalyptic number.

12402351742 is a deficient number, since it is larger than the sum of its proper divisors (7892405690).

12402351742 is a wasteful number, since it uses less digits than its factorization.

12402351742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563743274.

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 12402351742 in words is "twelve billion, four hundred two million, three hundred fifty-one thousand, seven hundred forty-two".