42895509879 has 32 divisors (see below), whose sum is σ = 61752637440. Its totient is φ = 26384896512.

The previous prime is 42895509821. The next prime is 42895509893. The reversal of 42895509879 is 97890559824.

It is a happy number.

It is not a de Polignac number, because 42895509879 - 2⁸ = 42895509623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42895509479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3580902 + ... + 3592860.

It is an arithmetic number, because the mean of its divisors is an integer number (1929769920).

Almost surely, 2^42895509879 is an apocalyptic number.

42895509879 is a deficient number, since it is larger than the sum of its proper divisors (18857127561).

42895509879 is a wasteful number, since it uses less digits than its factorization.

42895509879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13359.

The product of its (nonzero) digits is 65318400, while the sum is 66.

The spelling of 42895509879 in words is "forty-two billion, eight hundred ninety-five million, five hundred nine thousand, eight hundred seventy-nine".