42379599991 has 2 divisors, whose sum is σ = 42379599992. Its totient is φ = 42379599990.

The previous prime is 42379599967. The next prime is 42379600037. The reversal of 42379599991 is 19999597324.

42379599991 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 is a cyclic number.

It is not a de Polignac number, because 42379599991 - 2¹⁷ = 42379468919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42379539991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21189799995 + 21189799996.

It is an arithmetic number, because the mean of its divisors is an integer number (21189799996).

Almost surely, 2^42379599991 is an apocalyptic number.

42379599991 is a deficient number, since it is larger than the sum of its proper divisors (1).

42379599991 is an equidigital number, since it uses as much as digits as its factorization.

42379599991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49601160, while the sum is 67.

The spelling of 42379599991 in words is "forty-two billion, three hundred seventy-nine million, five hundred ninety-nine thousand, nine hundred ninety-one".