42625916842 has 8 divisors (see below), whose sum is σ = 64987053732. Its totient is φ = 20963565600.

The previous prime is 42625916819. The next prime is 42625916857. The reversal of 42625916842 is 24861952624.

It can be written as a sum of positive squares in 2 ways, for example, as 33207408441 + 9418508401 = 182229^2 + 97049^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174696259 + ... + 174696502.

Almost surely, 2^42625916842 is an apocalyptic number.

42625916842 is a deficient number, since it is larger than the sum of its proper divisors (22361136890).

42625916842 is a wasteful number, since it uses less digits than its factorization.

42625916842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349392824.

The product of its digits is 1658880, while the sum is 49.

The spelling of 42625916842 in words is "forty-two billion, six hundred twenty-five million, nine hundred sixteen thousand, eight hundred forty-two".