42729607869 has 16 divisors (see below), whose sum is σ = 61709999232. Its totient is φ = 26143144128.

The previous prime is 42729607867. The next prime is 42729607883. The reversal of 42729607869 is 96870692724.

It is not a de Polignac number, because 42729607869 - 2¹ = 42729607867 is a prime.

It is a super-2 number, since 2×42729607869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42729607861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3159817 + ... + 3173310.

It is an arithmetic number, because the mean of its divisors is an integer number (3856874952).

Almost surely, 2^42729607869 is an apocalyptic number.

It is an amenable number.

42729607869 is a deficient number, since it is larger than the sum of its proper divisors (18980391363).

42729607869 is a wasteful number, since it uses less digits than its factorization.

42729607869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333316.

The product of its (nonzero) digits is 18289152, while the sum is 60.

The spelling of 42729607869 in words is "forty-two billion, seven hundred twenty-nine million, six hundred seven thousand, eight hundred sixty-nine".