42885987479 has 4 divisors (see below), whose sum is σ = 43428848160. Its totient is φ = 42343126800.

The previous prime is 42885987467. The next prime is 42885987509. The reversal of 42885987479 is 97478958824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42885987479 - 2¹² = 42885983383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42885987409) 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, 271430222 + ... + 271430379.

It is an arithmetic number, because the mean of its divisors is an integer number (10857212040).

Almost surely, 2^42885987479 is an apocalyptic number.

42885987479 is a deficient number, since it is larger than the sum of its proper divisors (542860681).

42885987479 is an equidigital number, since it uses as much as digits as its factorization.

42885987479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542860680.

The product of its digits is 325140480, while the sum is 71.

The spelling of 42885987479 in words is "forty-two billion, eight hundred eighty-five million, nine hundred eighty-seven thousand, four hundred seventy-nine".