42517238205 has 32 divisors (see below), whose sum is σ = 74461484160. Its totient is φ = 20588417280.

The previous prime is 42517238191. The next prime is 42517238207. The reversal of 42517238205 is 50283271524.

It is not a de Polignac number, because 42517238205 - 2⁴ = 42517238189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42517238207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1775295 + ... + 1799084.

It is an arithmetic number, because the mean of its divisors is an integer number (2326921380).

Almost surely, 2^42517238205 is an apocalyptic number.

It is an amenable number.

42517238205 is a deficient number, since it is larger than the sum of its proper divisors (31944245955).

42517238205 is a wasteful number, since it uses less digits than its factorization.

42517238205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3574461.

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 42517238205 in words is "forty-two billion, five hundred seventeen million, two hundred thirty-eight thousand, two hundred five".