42188802287 has 4 divisors (see below), whose sum is σ = 42192669960. Its totient is φ = 42184934616.

The previous prime is 42188802269. The next prime is 42188802289. The reversal of 42188802287 is 78220888124.

42188802287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42188802287 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 (42188802289) 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, 1917428 + ... + 1939305.

It is an arithmetic number, because the mean of its divisors is an integer number (10548167490).

Almost surely, 2^42188802287 is an apocalyptic number.

42188802287 is a deficient number, since it is larger than the sum of its proper divisors (3867673).

42188802287 is a wasteful number, since it uses less digits than its factorization.

42188802287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867672.

The product of its (nonzero) digits is 917504, while the sum is 50.

The spelling of 42188802287 in words is "forty-two billion, one hundred eighty-eight million, eight hundred two thousand, two hundred eighty-seven".