42365718787 has 16 divisors (see below), whose sum is σ = 51726979840. Its totient is φ = 33888764448.

The previous prime is 42365718713. The next prime is 42365718809. The reversal of 42365718787 is 78781756324.

It is not a de Polignac number, because 42365718787 - 2³¹ = 40218235139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42365710787) 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, 2368248 + ... + 2386069.

It is an arithmetic number, because the mean of its divisors is an integer number (3232936240).

Almost surely, 2^42365718787 is an apocalyptic number.

42365718787 is a deficient number, since it is larger than the sum of its proper divisors (9361261053).

42365718787 is a wasteful number, since it uses less digits than its factorization.

42365718787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754410.

The product of its digits is 15805440, while the sum is 58.

The spelling of 42365718787 in words is "forty-two billion, three hundred sixty-five million, seven hundred eighteen thousand, seven hundred eighty-seven".