42887372729 has 4 divisors (see below), whose sum is σ = 42887919360. Its totient is φ = 42886826100.

The previous prime is 42887372699. The next prime is 42887372779. The reversal of 42887372729 is 92727378824.

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 42887372729 - 2²⁰ = 42886324153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42887372779) 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, 130889 + ... + 320790.

It is an arithmetic number, because the mean of its divisors is an integer number (10721979840).

Almost surely, 2^42887372729 is an apocalyptic number.

It is an amenable number.

42887372729 is a deficient number, since it is larger than the sum of its proper divisors (546631).

42887372729 is an equidigital number, since it uses as much as digits as its factorization.

42887372729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546630.

The product of its digits is 18966528, while the sum is 59.

The spelling of 42887372729 in words is "forty-two billion, eight hundred eighty-seven million, three hundred seventy-two thousand, seven hundred twenty-nine".