42346386779 has 2 divisors, whose sum is σ = 42346386780. Its totient is φ = 42346386778.

The previous prime is 42346386763. The next prime is 42346386847. The reversal of 42346386779 is 97768364324.

42346386779 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 42346386779 - 2⁴ = 42346386763 is a prime.

It is not a weakly prime, because it can be changed into another prime (42346389779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21173193389 + 21173193390.

It is an arithmetic number, because the mean of its divisors is an integer number (21173193390).

Almost surely, 2^42346386779 is an apocalyptic number.

42346386779 is a deficient number, since it is larger than the sum of its proper divisors (1).

42346386779 is an equidigital number, since it uses as much as digits as its factorization.

42346386779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 59.

The spelling of 42346386779 in words is "forty-two billion, three hundred forty-six million, three hundred eighty-six thousand, seven hundred seventy-nine".