42427206813 has 4 divisors (see below), whose sum is σ = 56569609088. Its totient is φ = 28284804540.

The previous prime is 42427206797. The next prime is 42427206823. The reversal of 42427206813 is 31860272424.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42427206813 - 2⁴ = 42427206797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42427206823) 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, 7071201133 + ... + 7071201138.

It is an arithmetic number, because the mean of its divisors is an integer number (14142402272).

Almost surely, 2^42427206813 is an apocalyptic number.

It is an amenable number.

42427206813 is a deficient number, since it is larger than the sum of its proper divisors (14142402275).

42427206813 is a wasteful number, since it uses less digits than its factorization.

42427206813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14142402274.

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 42427206813 in words is "forty-two billion, four hundred twenty-seven million, two hundred six thousand, eight hundred thirteen".