42017684187701 has 4 divisors (see below), whose sum is σ = 42017876277900. Its totient is φ = 42017492097504.

The previous prime is 42017684187679. The next prime is 42017684187707. The reversal of 42017684187701 is 10778148671024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34236658464100 + 7781025723601 = 5851210^2 + 2789449^2 .

It is a cyclic number.

It is not a de Polignac number, because 42017684187701 - 2⁶ = 42017684187637 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 (42017684187707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95716616 + ... + 96154593.

It is an arithmetic number, because the mean of its divisors is an integer number (10504469069475).

Almost surely, 2^{42017684187701} is an apocalyptic number.

It is an amenable number.

42017684187701 is a deficient number, since it is larger than the sum of its proper divisors (192090199).

42017684187701 is a wasteful number, since it uses less digits than its factorization.

42017684187701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192090198.

The product of its (nonzero) digits is 4214784, while the sum is 56.

The spelling of 42017684187701 in words is "forty-two trillion, seventeen billion, six hundred eighty-four million, one hundred eighty-seven thousand, seven hundred one".