42785188158683 has 2 divisors, whose sum is σ = 42785188158684. Its totient is φ = 42785188158682.

The previous prime is 42785188158673. The next prime is 42785188158781. The reversal of 42785188158683 is 38685188158724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42785188158683 - 2¹² = 42785188154587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42785188158683.

It is not a weakly prime, because it can be changed into another prime (42785188158673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21392594079341 + 21392594079342.

It is an arithmetic number, because the mean of its divisors is an integer number (21392594079342).

Almost surely, 2^{42785188158683} is an apocalyptic number.

42785188158683 is a deficient number, since it is larger than the sum of its proper divisors (1).

42785188158683 is an equidigital number, since it uses as much as digits as its factorization.

42785188158683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 825753600, while the sum is 74.

The spelling of 42785188158683 in words is "forty-two trillion, seven hundred eighty-five billion, one hundred eighty-eight million, one hundred fifty-eight thousand, six hundred eighty-three".