42979329185 has 16 divisors (see below), whose sum is σ = 55585123776. Its totient is φ = 31714235328.

The previous prime is 42979329181. The next prime is 42979329193. The reversal of 42979329185 is 58192397924.

It is a cyclic number.

It is not a de Polignac number, because 42979329185 - 2² = 42979329181 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42979329181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167999 + ... + 337908.

It is an arithmetic number, because the mean of its divisors is an integer number (3474070236).

Almost surely, 2^42979329185 is an apocalyptic number.

It is an amenable number.

42979329185 is a deficient number, since it is larger than the sum of its proper divisors (12605794591).

42979329185 is a wasteful number, since it uses less digits than its factorization.

42979329185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507232.

The product of its digits is 9797760, while the sum is 59.

The spelling of 42979329185 in words is "forty-two billion, nine hundred seventy-nine million, three hundred twenty-nine thousand, one hundred eighty-five".