42687768799 has 8 divisors (see below), whose sum is σ = 46202458400. Its totient is φ = 39206081376.

The previous prime is 42687768779. The next prime is 42687768803. The reversal of 42687768799 is 99786778624.

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 42687768799 - 2⁷ = 42687768671 is a prime.

It is a super-3 number, since 3×42687768799³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42687768779) 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, 8247852 + ... + 8253025.

It is an arithmetic number, because the mean of its divisors is an integer number (5775307300).

Almost surely, 2^42687768799 is an apocalyptic number.

42687768799 is a deficient number, since it is larger than the sum of its proper divisors (3514689601).

42687768799 is a wasteful number, since it uses less digits than its factorization.

42687768799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16501089.

The product of its digits is 512096256, while the sum is 73.

The spelling of 42687768799 in words is "forty-two billion, six hundred eighty-seven million, seven hundred sixty-eight thousand, seven hundred ninety-nine".