42606544979 has 2 divisors, whose sum is σ = 42606544980. Its totient is φ = 42606544978.

The previous prime is 42606544873. The next prime is 42606545027. The reversal of 42606544979 is 97944560624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42606544979 - 2⁸ = 42606544723 is a prime.

It is a super-2 number, since 2×42606544979² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42606244979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21303272489 + 21303272490.

It is an arithmetic number, because the mean of its divisors is an integer number (21303272490).

Almost surely, 2^42606544979 is an apocalyptic number.

42606544979 is a deficient number, since it is larger than the sum of its proper divisors (1).

42606544979 is an equidigital number, since it uses as much as digits as its factorization.

42606544979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 42606544979 in words is "forty-two billion, six hundred six million, five hundred forty-four thousand, nine hundred seventy-nine".