328077778078 has 4 divisors (see below), whose sum is σ = 492116667120. Its totient is φ = 164038889038.

The previous prime is 328077778027. The next prime is 328077778103. The reversal of 328077778078 is 870877770823.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82019444518 + ... + 82019444521.

It is an arithmetic number, because the mean of its divisors is an integer number (123029166780).

Almost surely, 2^328077778078 is an apocalyptic number.

328077778078 is a deficient number, since it is larger than the sum of its proper divisors (164038889042).

328077778078 is a wasteful number, since it uses less digits than its factorization.

328077778078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164038889041.

The product of its (nonzero) digits is 51631104, while the sum is 64.

The spelling of 328077778078 in words is "three hundred twenty-eight billion, seventy-seven million, seven hundred seventy-eight thousand, seventy-eight".