42729052667 has 6 divisors (see below), whose sum is σ = 49705224588. Its totient is φ = 36624902244.

The previous prime is 42729052649. The next prime is 42729052693. The reversal of 42729052667 is 76625092724.

It is not a de Polignac number, because 42729052667 - 2¹⁰ = 42729051643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42729052637) 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 5 ways as a sum of consecutive naturals, for example, 436010693 + ... + 436010790.

It is an arithmetic number, because the mean of its divisors is an integer number (8284204098).

Almost surely, 2^42729052667 is an apocalyptic number.

42729052667 is a deficient number, since it is larger than the sum of its proper divisors (6976171921).

42729052667 is an equidigital number, since it uses as much as digits as its factorization.

42729052667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872021497 (or 872021490 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 42729052667 in words is "forty-two billion, seven hundred twenty-nine million, fifty-two thousand, six hundred sixty-seven".