42878280212017 has 8 divisors (see below), whose sum is σ = 43125921394920. Its totient is φ = 42630757102080.

The previous prime is 42878280211973. The next prime is 42878280212029. The reversal of 42878280212017 is 71021208287824.

It can be written as a sum of positive squares in 4 ways, for example, as 1757469884416 + 41120810327601 = 1325696^2 + 6412551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42878280212017 - 2³⁹ = 42328524398129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42878280216017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28789792 + ... + 30242497.

It is an arithmetic number, because the mean of its divisors is an integer number (5390740174365).

Almost surely, 2^{42878280212017} is an apocalyptic number.

It is an amenable number.

42878280212017 is a deficient number, since it is larger than the sum of its proper divisors (247641182903).

42878280212017 is a wasteful number, since it uses less digits than its factorization.

42878280212017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59036483.

The product of its (nonzero) digits is 1605632, while the sum is 52.

The spelling of 42878280212017 in words is "forty-two trillion, eight hundred seventy-eight billion, two hundred eighty million, two hundred twelve thousand, seventeen".