328779977823 has 48 divisors (see below), whose sum is σ = 534279732480. Its totient is φ = 193124131200.

The previous prime is 328779977797. The next prime is 328779977831.

328779977823 is a `hidden beast` number, since 328 + 77 + 99 + 77 + 82 + 3 = 666.

328779977823 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 328779977823 - 2¹² = 328779973727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328779977833) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18315 + ... + 811107.

It is an arithmetic number, because the mean of its divisors is an integer number (11130827760).

Almost surely, 2^328779977823 is an apocalyptic number.

328779977823 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

328779977823 is a deficient number, since it is larger than the sum of its proper divisors (205499754657).

328779977823 is a wasteful number, since it uses less digits than its factorization.

328779977823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792940 (or 792937 counting only the distinct ones).

The product of its digits is 448084224, while the sum is 72.

The spelling of 328779977823 in words is "three hundred twenty-eight billion, seven hundred seventy-nine million, nine hundred seventy-seven thousand, eight hundred twenty-three".