8539785429 has 16 divisors (see below), whose sum is σ = 13697902080. Its totient is φ = 4623041520.

The previous prime is 8539785427. The next prime is 8539785433. The reversal of 8539785429 is 9245879358.

It is not a de Polignac number, because 8539785429 - 2¹ = 8539785427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8539785427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10701087 + ... + 10701884.

It is an arithmetic number, because the mean of its divisors is an integer number (856118880).

Almost surely, 2^8539785429 is an apocalyptic number.

It is an amenable number.

8539785429 is a deficient number, since it is larger than the sum of its proper divisors (5158116651).

8539785429 is a wasteful number, since it uses less digits than its factorization.

8539785429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21403000.

The product of its digits is 21772800, while the sum is 60.

The square root of 8539785429 is about 92410.9594636913. The cubic root of 8539785429 is about 2044.0067213989.

The spelling of 8539785429 in words is "eight billion, five hundred thirty-nine million, seven hundred eighty-five thousand, four hundred twenty-nine".