42615320351 has 2 divisors, whose sum is σ = 42615320352. Its totient is φ = 42615320350.

The previous prime is 42615320327. The next prime is 42615320399. The reversal of 42615320351 is 15302351624.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42615320351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42615328351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21307660175 + 21307660176.

It is an arithmetic number, because the mean of its divisors is an integer number (21307660176).

Almost surely, 2^42615320351 is an apocalyptic number.

42615320351 is a deficient number, since it is larger than the sum of its proper divisors (1).

42615320351 is an equidigital number, since it uses as much as digits as its factorization.

42615320351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 42615320351 its reverse (15302351624), we get a palindrome (57917671975).

The spelling of 42615320351 in words is "forty-two billion, six hundred fifteen million, three hundred twenty thousand, three hundred fifty-one".