42285790845 has 12 divisors (see below), whose sum is σ = 73295370876. Its totient is φ = 22552421760.

The previous prime is 42285790843. The next prime is 42285790847. The reversal of 42285790845 is 54809758224.

42285790845 is a `hidden beast` number, since 4 + 2 + 28 + 579 + 0 + 8 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (42285790843) and next prime (42285790847).

It can be written as a sum of positive squares in 2 ways, for example, as 5044124484 + 37241666361 = 71022^2 + 192981^2 .

It is not a de Polignac number, because 42285790845 - 2¹ = 42285790843 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42285790791 and 42285790800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42285790843) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 469842076 + ... + 469842165.

It is an arithmetic number, because the mean of its divisors is an integer number (6107947573).

Almost surely, 2^42285790845 is an apocalyptic number.

42285790845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42285790845 is a deficient number, since it is larger than the sum of its proper divisors (31009580031).

42285790845 is a wasteful number, since it uses less digits than its factorization.

42285790845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939684252 (or 939684249 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 42285790845 in words is "forty-two billion, two hundred eighty-five million, seven hundred ninety thousand, eight hundred forty-five".