42320099951 has 2 divisors, whose sum is σ = 42320099952. Its totient is φ = 42320099950.

The previous prime is 42320099929. The next prime is 42320100023. The reversal of 42320099951 is 15999002324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42320099951 - 2¹⁰ = 42320098927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42320099551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21160049975 + 21160049976.

It is an arithmetic number, because the mean of its divisors is an integer number (21160049976).

Almost surely, 2^42320099951 is an apocalyptic number.

42320099951 is a deficient number, since it is larger than the sum of its proper divisors (1).

42320099951 is an equidigital number, since it uses as much as digits as its factorization.

42320099951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 42320099951 in words is "forty-two billion, three hundred twenty million, ninety-nine thousand, nine hundred fifty-one".