42766651289 has 4 divisors (see below), whose sum is σ = 42824211456. Its totient is φ = 42709091124.

The previous prime is 42766651267. The next prime is 42766651327. The reversal of 42766651289 is 98215666724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42766651289 - 2²⁴ = 42749874073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42766651259) 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, 28778969 + ... + 28780454.

It is an arithmetic number, because the mean of its divisors is an integer number (10706052864).

Almost surely, 2^42766651289 is an apocalyptic number.

It is an amenable number.

42766651289 is a deficient number, since it is larger than the sum of its proper divisors (57560167).

42766651289 is an equidigital number, since it uses as much as digits as its factorization.

42766651289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57560166.

The product of its digits is 8709120, while the sum is 56.

The spelling of 42766651289 in words is "forty-two billion, seven hundred sixty-six million, six hundred fifty-one thousand, two hundred eighty-nine".