42686571279 has 16 divisors (see below), whose sum is σ = 62111427840. Its totient is φ = 25861536960.

The previous prime is 42686571241. The next prime is 42686571283. The reversal of 42686571279 is 97217568624.

It is a happy number.

It is not a de Polignac number, because 42686571279 - 2²⁰ = 42685522703 is a prime.

It is a super-3 number, since 3×42686571279³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42686570279) 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 in 15 ways as a sum of consecutive naturals, for example, 132099 + ... + 320660.

It is an arithmetic number, because the mean of its divisors is an integer number (3881964240).

Almost surely, 2^42686571279 is an apocalyptic number.

42686571279 is a deficient number, since it is larger than the sum of its proper divisors (19424856561).

42686571279 is a wasteful number, since it uses less digits than its factorization.

42686571279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455630.

The product of its digits is 10160640, while the sum is 57.

The spelling of 42686571279 in words is "forty-two billion, six hundred eighty-six million, five hundred seventy-one thousand, two hundred seventy-nine".