42729683187 has 32 divisors (see below), whose sum is σ = 59196303360. Its totient is φ = 27387360000.

The previous prime is 42729683099. The next prime is 42729683203. The reversal of 42729683187 is 78138692724.

It is a de Polignac number, because none of the positive numbers 2^k-42729683187 is a prime.

It is a super-2 number, since 2×42729683187² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42729688187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11093812 + ... + 11097662.

It is an arithmetic number, because the mean of its divisors is an integer number (1849884480).

Almost surely, 2^42729683187 is an apocalyptic number.

42729683187 is a deficient number, since it is larger than the sum of its proper divisors (16466620173).

42729683187 is a wasteful number, since it uses less digits than its factorization.

42729683187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635.

The product of its digits is 8128512, while the sum is 57.

The spelling of 42729683187 in words is "forty-two billion, seven hundred twenty-nine million, six hundred eighty-three thousand, one hundred eighty-seven".