42718788385 has 64 divisors (see below), whose sum is σ = 68357786112. Its totient is φ = 24856989696.

The previous prime is 42718788383. The next prime is 42718788433. The reversal of 42718788385 is 58388781724.

It is a happy number.

It is not a de Polignac number, because 42718788385 - 2¹ = 42718788383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42718788383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 268387 + ... + 396823.

It is an arithmetic number, because the mean of its divisors is an integer number (1068090408).

Almost surely, 2^42718788385 is an apocalyptic number.

It is an amenable number.

42718788385 is a deficient number, since it is larger than the sum of its proper divisors (25638997727).

42718788385 is a wasteful number, since it uses less digits than its factorization.

42718788385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128522.

The product of its digits is 24084480, while the sum is 61.

The spelling of 42718788385 in words is "forty-two billion, seven hundred eighteen million, seven hundred eighty-eight thousand, three hundred eighty-five".