325812776138 has 4 divisors (see below), whose sum is σ = 488719164210. Its totient is φ = 162906388068.

The previous prime is 325812776083. The next prime is 325812776213. The reversal of 325812776138 is 831677218523.

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

It can be written as a sum of positive squares in only one way, i.e., 302903834689 + 22908941449 = 550367^2 + 151357^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 325812776138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81453194033 + ... + 81453194036.

Almost surely, 2^325812776138 is an apocalyptic number.

325812776138 is a deficient number, since it is larger than the sum of its proper divisors (162906388072).

325812776138 is a wasteful number, since it uses less digits than its factorization.

325812776138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162906388071.

The product of its digits is 3386880, while the sum is 53.

The spelling of 325812776138 in words is "three hundred twenty-five billion, eight hundred twelve million, seven hundred seventy-six thousand, one hundred thirty-eight".