42724288878 has 8 divisors (see below), whose sum is σ = 85448577768. Its totient is φ = 14241429624.

The previous prime is 42724288853. The next prime is 42724288879. The reversal of 42724288878 is 87888242724.

It is a sphenic number, since it is the product of 3 distinct primes.

42724288878 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42724288879) 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 3 ways as a sum of consecutive naturals, for example, 3560357401 + ... + 3560357412.

It is an arithmetic number, because the mean of its divisors is an integer number (10681072221).

Almost surely, 2^42724288878 is an apocalyptic number.

42724288878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42724288878 is a wasteful number, since it uses less digits than its factorization.

42724288878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7120714818.

The product of its digits is 25690112, while the sum is 60.

The spelling of 42724288878 in words is "forty-two billion, seven hundred twenty-four million, two hundred eighty-eight thousand, eight hundred seventy-eight".