42421618376 has 32 divisors (see below), whose sum is σ = 80301080160. Its totient is φ = 21008262912.

The previous prime is 42421618339. The next prime is 42421618417. The reversal of 42421618376 is 67381612424.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1324811 + ... + 1356453.

It is an arithmetic number, because the mean of its divisors is an integer number (2509408755).

Almost surely, 2^42421618376 is an apocalyptic number.

It is an amenable number.

42421618376 is a deficient number, since it is larger than the sum of its proper divisors (37879461784).

42421618376 is a wasteful number, since it uses less digits than its factorization.

42421618376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33245 (or 33241 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The spelling of 42421618376 in words is "forty-two billion, four hundred twenty-one million, six hundred eighteen thousand, three hundred seventy-six".