42339599977 has 2 divisors, whose sum is σ = 42339599978. Its totient is φ = 42339599976.

The previous prime is 42339599969. The next prime is 42339600041. The reversal of 42339599977 is 77999593324.

42339599977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35730072576 + 6609527401 = 189024^2 + 81299^2 .

It is a cyclic number.

It is not a de Polignac number, because 42339599977 - 2³ = 42339599969 is a prime.

It is not a weakly prime, because it can be changed into another prime (42339599177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21169799988 + 21169799989.

It is an arithmetic number, because the mean of its divisors is an integer number (21169799989).

Almost surely, 2^42339599977 is an apocalyptic number.

It is an amenable number.

42339599977 is a deficient number, since it is larger than the sum of its proper divisors (1).

42339599977 is an equidigital number, since it uses as much as digits as its factorization.

42339599977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115736040, while the sum is 67.

The spelling of 42339599977 in words is "forty-two billion, three hundred thirty-nine million, five hundred ninety-nine thousand, nine hundred seventy-seven".