42679617850 has 24 divisors (see below), whose sum is σ = 79713506268. Its totient is φ = 17001004800.

The previous prime is 42679617847. The next prime is 42679617947. The reversal of 42679617850 is 5871697624.

It can be written as a sum of positive squares in 6 ways, for example, as 34306818841 + 8372799009 = 185221^2 + 91503^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42679617791 and 42679617800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1758889 + ... + 1782988.

Almost surely, 2^42679617850 is an apocalyptic number.

42679617850 is a deficient number, since it is larger than the sum of its proper divisors (37033888418).

42679617850 is a wasteful number, since it uses less digits than its factorization.

42679617850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542130 (or 3542125 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 42679617850 in words is "forty-two billion, six hundred seventy-nine million, six hundred seventeen thousand, eight hundred fifty".