42781760604 has 144 divisors (see below), whose sum is σ = 127663361280. Its totient is φ = 12400439040.

The previous prime is 42781760603. The next prime is 42781760621. The reversal of 42781760604 is 40606718724.

42781760604 is a `hidden beast` number, since 4 + 27 + 8 + 17 + 6 + 0 + 604 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 42781760604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42781760603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158932 + ... + 332900.

It is an arithmetic number, because the mean of its divisors is an integer number (886551120).

Almost surely, 2^42781760604 is an apocalyptic number.

42781760604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42781760604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63831680640).

42781760604 is an abundant number, since it is smaller than the sum of its proper divisors (84881600676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42781760604 is a wasteful number, since it uses less digits than its factorization.

42781760604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174022 (or 174008 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 42781760604 in words is "forty-two billion, seven hundred eighty-one million, seven hundred sixty thousand, six hundred four".