42642734699 has 8 divisors (see below), whose sum is σ = 43082713440. Its totient is φ = 42203255616.

The previous prime is 42642734653. The next prime is 42642734707. The reversal of 42642734699 is 99643724624.

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 42642734699 - 2²⁰ = 42641686123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42642734609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47879 + ... + 295935.

It is an arithmetic number, because the mean of its divisors is an integer number (5385339180).

Almost surely, 2^42642734699 is an apocalyptic number.

42642734699 is a deficient number, since it is larger than the sum of its proper divisors (439978741).

42642734699 is a wasteful number, since it uses less digits than its factorization.

42642734699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249829.

The product of its digits is 15676416, while the sum is 56.

The spelling of 42642734699 in words is "forty-two billion, six hundred forty-two million, seven hundred thirty-four thousand, six hundred ninety-nine".