42434004855 has 48 divisors (see below), whose sum is σ = 74721259872. Its totient is φ = 20548281600.

The previous prime is 42434004841. The next prime is 42434004883. The reversal of 42434004855 is 55840043424.

It is not a de Polignac number, because 42434004855 - 2¹⁶ = 42433939319 is a prime.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1475877 + ... + 1504353.

It is an arithmetic number, because the mean of its divisors is an integer number (1556692914).

Almost surely, 2^42434004855 is an apocalyptic number.

42434004855 is a deficient number, since it is larger than the sum of its proper divisors (32287255017).

42434004855 is a wasteful number, since it uses less digits than its factorization.

42434004855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29328 (or 29317 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 39.

The spelling of 42434004855 in words is "forty-two billion, four hundred thirty-four million, four thousand, eight hundred fifty-five".