77323350025 has 12 divisors (see below), whose sum is σ = 95885441932. Its totient is φ = 61855784640.

The previous prime is 77323350007. The next prime is 77323350037. The reversal of 77323350025 is 52005332377.

It can be written as a sum of positive squares in 6 ways, for example, as 4777159689 + 72546190336 = 69117^2 + 269344^2 .

It is not a de Polignac number, because 77323350025 - 2⁵ = 77323349993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 591967 + ... + 710683.

Almost surely, 2^77323350025 is an apocalyptic number.

It is an amenable number.

77323350025 is a deficient number, since it is larger than the sum of its proper divisors (18562091907).

77323350025 is a wasteful number, since it uses less digits than its factorization.

77323350025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144780 (or 144775 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 37.

The spelling of 77323350025 in words is "seventy-seven billion, three hundred twenty-three million, three hundred fifty thousand, twenty-five".