12542440616422 has 8 divisors (see below), whose sum is σ = 18813752924400. Its totient is φ = 6271189641624.

The previous prime is 12542440616413. The next prime is 12542440616437. The reversal of 12542440616422 is 22461604424521.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14818597 + ... + 15642112.

It is an arithmetic number, because the mean of its divisors is an integer number (2351719115550).

Almost surely, 2^{12542440616422} is an apocalyptic number.

12542440616422 is a deficient number, since it is larger than the sum of its proper divisors (6271312307978).

12542440616422 is a wasteful number, since it uses less digits than its factorization.

12542440616422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30666590.

The product of its (nonzero) digits is 737280, while the sum is 43.

The spelling of 12542440616422 in words is "twelve trillion, five hundred forty-two billion, four hundred forty million, six hundred sixteen thousand, four hundred twenty-two".