42205204651 has 2 divisors, whose sum is σ = 42205204652. Its totient is φ = 42205204650.

The previous prime is 42205204637. The next prime is 42205204669. The reversal of 42205204651 is 15640250224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42205204651 - 2⁷ = 42205204523 is a prime.

It is not a weakly prime, because it can be changed into another prime (42205204351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21102602325 + 21102602326.

It is an arithmetic number, because the mean of its divisors is an integer number (21102602326).

Almost surely, 2^42205204651 is an apocalyptic number.

42205204651 is a deficient number, since it is larger than the sum of its proper divisors (1).

42205204651 is an equidigital number, since it uses as much as digits as its factorization.

42205204651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 42205204651 its reverse (15640250224), we get a palindrome (57845454875).

The spelling of 42205204651 in words is "forty-two billion, two hundred five million, two hundred four thousand, six hundred fifty-one".