42881810678717 has 32 divisors (see below), whose sum is σ = 46769290444800. Its totient is φ = 39185946229248.

The previous prime is 42881810678683. The next prime is 42881810678807. The reversal of 42881810678717 is 71787601818824.

It is a de Polignac number, because none of the positive numbers 2^k-42881810678717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42881810678017) 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, 19666748 + ... + 21738090.

It is an arithmetic number, because the mean of its divisors is an integer number (1461540326400).

Almost surely, 2^{42881810678717} is an apocalyptic number.

42881810678717 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

42881810678717 is a deficient number, since it is larger than the sum of its proper divisors (3887479766083).

42881810678717 is a wasteful number, since it uses less digits than its factorization.

42881810678717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071745.

The product of its (nonzero) digits is 67436544, while the sum is 68.

The spelling of 42881810678717 in words is "forty-two trillion, eight hundred eighty-one billion, eight hundred ten million, six hundred seventy-eight thousand, seven hundred seventeen".