315642462421242 has 16 divisors (see below), whose sum is σ = 688674463464672. Its totient is φ = 95649231036720.

The previous prime is 315642462421207. The next prime is 315642462421283. The reversal of 315642462421242 is 242124264246513.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 315642462421191 and 315642462421200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2391230775853 + ... + 2391230775984.

It is an arithmetic number, because the mean of its divisors is an integer number (43042153966542).

Almost surely, 2^{315642462421242} is an apocalyptic number.

315642462421242 is an abundant number, since it is smaller than the sum of its proper divisors (373032001043430).

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

315642462421242 is a wasteful number, since it uses less digits than its factorization.

315642462421242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782461551853.

The product of its digits is 4423680, while the sum is 48.

The spelling of 315642462421242 in words is "three hundred fifteen trillion, six hundred forty-two billion, four hundred sixty-two million, four hundred twenty-one thousand, two hundred forty-two".