42935717865 has 16 divisors (see below), whose sum is σ = 69305090688. Its totient is φ = 22696402176.

The previous prime is 42935717863. The next prime is 42935717893. The reversal of 42935717865 is 56871753924.

It is not a de Polignac number, because 42935717865 - 2¹ = 42935717863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42935717863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12663709 + ... + 12667098.

It is an arithmetic number, because the mean of its divisors is an integer number (4331568168).

Almost surely, 2^42935717865 is an apocalyptic number.

It is an amenable number.

42935717865 is a deficient number, since it is larger than the sum of its proper divisors (26369372823).

42935717865 is a wasteful number, since it uses less digits than its factorization.

42935717865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25330928.

The product of its digits is 12700800, while the sum is 57.

The spelling of 42935717865 in words is "forty-two billion, nine hundred thirty-five million, seven hundred seventeen thousand, eight hundred sixty-five".