42215206223427 has 64 divisors (see below), whose sum is σ = 58902346137600. Its totient is φ = 26863599144960.

The previous prime is 42215206223423. The next prime is 42215206223429. The reversal of 42215206223427 is 72432260251224.

It is a happy number.

It is not a de Polignac number, because 42215206223427 - 2² = 42215206223423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42215206223423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2667956838 + ... + 2667972660.

It is an arithmetic number, because the mean of its divisors is an integer number (920349158400).

Almost surely, 2^{42215206223427} is an apocalyptic number.

42215206223427 is a deficient number, since it is larger than the sum of its proper divisors (16687139914173).

42215206223427 is a wasteful number, since it uses less digits than its factorization.

42215206223427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17328.

The product of its (nonzero) digits is 645120, while the sum is 42.

The spelling of 42215206223427 in words is "forty-two trillion, two hundred fifteen billion, two hundred six million, two hundred twenty-three thousand, four hundred twenty-seven".