42005230651 has 4 divisors (see below), whose sum is σ = 42311838312. Its totient is φ = 41698622992.

The previous prime is 42005230607. The next prime is 42005230667. The reversal of 42005230651 is 15603250024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42005230651 - 2¹³ = 42005222459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42005230151) 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, 153303625 + ... + 153303898.

It is an arithmetic number, because the mean of its divisors is an integer number (10577959578).

Almost surely, 2^42005230651 is an apocalyptic number.

42005230651 is a deficient number, since it is larger than the sum of its proper divisors (306607661).

42005230651 is a wasteful number, since it uses less digits than its factorization.

42005230651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306607660.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 42005230651 its reverse (15603250024), we get a palindrome (57608480675).

The spelling of 42005230651 in words is "forty-two billion, five million, two hundred thirty thousand, six hundred fifty-one".