85784150863 has 4 divisors (see below), whose sum is σ = 88551381568. Its totient is φ = 83016920160.

The previous prime is 85784150861. The next prime is 85784150869. The reversal of 85784150863 is 36805148758.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85784150863 - 2¹ = 85784150861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85784150861) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1383615306 + ... + 1383615367.

It is an arithmetic number, because the mean of its divisors is an integer number (22137845392).

Almost surely, 2^85784150863 is an apocalyptic number.

85784150863 is a deficient number, since it is larger than the sum of its proper divisors (2767230705).

85784150863 is a wasteful number, since it uses less digits than its factorization.

85784150863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767230704.

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 85784150863 in words is "eighty-five billion, seven hundred eighty-four million, one hundred fifty thousand, eight hundred sixty-three".