42737656579 has 2 divisors, whose sum is σ = 42737656580. Its totient is φ = 42737656578.

The previous prime is 42737656567. The next prime is 42737656589. The reversal of 42737656579 is 97565673724.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42737656579 - 2¹⁷ = 42737525507 is a prime.

It is not a weakly prime, because it can be changed into another prime (42737656529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21368828289 + 21368828290.

It is an arithmetic number, because the mean of its divisors is an integer number (21368828290).

Almost surely, 2^42737656579 is an apocalyptic number.

42737656579 is a deficient number, since it is larger than the sum of its proper divisors (1).

42737656579 is an equidigital number, since it uses as much as digits as its factorization.

42737656579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66679200, while the sum is 61.

The spelling of 42737656579 in words is "forty-two billion, seven hundred thirty-seven million, six hundred fifty-six thousand, five hundred seventy-nine".