42868908817 has 16 divisors (see below), whose sum is σ = 49966301952. Its totient is φ = 36018947520.

The previous prime is 42868908799. The next prime is 42868908827. The reversal of 42868908817 is 71880986824.

It is a cyclic number.

It is not a de Polignac number, because 42868908817 - 2¹⁹ = 42868384529 is a prime.

It is a super-3 number, since 3×42868908817³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is not an unprimeable number, because it can be changed into a prime (42868908827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46213 + ... + 296434.

It is an arithmetic number, because the mean of its divisors is an integer number (3122893872).

Almost surely, 2^42868908817 is an apocalyptic number.

It is an amenable number.

42868908817 is a deficient number, since it is larger than the sum of its proper divisors (7097393135).

42868908817 is a wasteful number, since it uses less digits than its factorization.

42868908817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343008.

The product of its (nonzero) digits is 12386304, while the sum is 61.

The spelling of 42868908817 in words is "forty-two billion, eight hundred sixty-eight million, nine hundred eight thousand, eight hundred seventeen".