42115081804 has 6 divisors (see below), whose sum is σ = 73701393164. Its totient is φ = 21057540900.

The previous prime is 42115081739. The next prime is 42115081831. The reversal of 42115081804 is 40818051124.

It is a happy number.

It is a super-2 number, since 2×42115081804² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42115081804.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5264385222 + ... + 5264385229.

Almost surely, 2^42115081804 is an apocalyptic number.

It is an amenable number.

42115081804 is a deficient number, since it is larger than the sum of its proper divisors (31586311360).

42115081804 is a wasteful number, since it uses less digits than its factorization.

42115081804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10528770455 (or 10528770453 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The spelling of 42115081804 in words is "forty-two billion, one hundred fifteen million, eighty-one thousand, eight hundred four".