11785320582 has 16 divisors (see below), whose sum is σ = 26937875712. Its totient is φ = 3367234440.

The previous prime is 11785320577. The next prime is 11785320593. The reversal of 11785320582 is 28502358711.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 280602871 = 11785320582 / (1 + 1 + 7 + 8 + 5 + 3 + 2 + 0 + 5 + 8 + 2).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 140301394 + ... + 140301477.

It is an arithmetic number, because the mean of its divisors is an integer number (1683617232).

Almost surely, 2^11785320582 is an apocalyptic number.

11785320582 is an abundant number, since it is smaller than the sum of its proper divisors (15152555130).

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

11785320582 is a wasteful number, since it uses less digits than its factorization.

11785320582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280602883.

The product of its (nonzero) digits is 134400, while the sum is 42.

The spelling of 11785320582 in words is "eleven billion, seven hundred eighty-five million, three hundred twenty thousand, five hundred eighty-two".