77323516590 has 16 divisors (see below), whose sum is σ = 185576439888. Its totient is φ = 20619604416.

The previous prime is 77323516561. The next prime is 77323516637. The reversal of 77323516590 is 9561532377.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1288725247 + ... + 1288725306.

It is an arithmetic number, because the mean of its divisors is an integer number (11598527493).

Almost surely, 2^77323516590 is an apocalyptic number.

77323516590 is an abundant number, since it is smaller than the sum of its proper divisors (108252923298).

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

77323516590 is a wasteful number, since it uses less digits than its factorization.

77323516590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577450563.

The product of its (nonzero) digits is 1190700, while the sum is 48.

The spelling of 77323516590 in words is "seventy-seven billion, three hundred twenty-three million, five hundred sixteen thousand, five hundred ninety".