42385190217 has 4 divisors (see below), whose sum is σ = 56513586960. Its totient is φ = 28256793476.

The previous prime is 42385190213. The next prime is 42385190233. The reversal of 42385190217 is 71209158324.

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 a cyclic number.

It is not a de Polignac number, because 42385190217 - 2² = 42385190213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42385190213) 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, 7064198367 + ... + 7064198372.

It is an arithmetic number, because the mean of its divisors is an integer number (14128396740).

Almost surely, 2^42385190217 is an apocalyptic number.

It is an amenable number.

42385190217 is a deficient number, since it is larger than the sum of its proper divisors (14128396743).

42385190217 is a wasteful number, since it uses less digits than its factorization.

42385190217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14128396742.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 42385190217 in words is "forty-two billion, three hundred eighty-five million, one hundred ninety thousand, two hundred seventeen".