320912869386 has 8 divisors (see below), whose sum is σ = 641825738784. Its totient is φ = 106970956460.

The previous prime is 320912869367. The next prime is 320912869393. The reversal of 320912869386 is 683968219023.

It is a sphenic number, since it is the product of 3 distinct primes.

320912869386 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26742739110 + ... + 26742739121.

It is an arithmetic number, because the mean of its divisors is an integer number (80228217348).

Almost surely, 2^320912869386 is an apocalyptic number.

320912869386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

320912869386 is a wasteful number, since it uses less digits than its factorization.

320912869386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53485478236.

The product of its (nonzero) digits is 6718464, while the sum is 57.

The spelling of 320912869386 in words is "three hundred twenty billion, nine hundred twelve million, eight hundred sixty-nine thousand, three hundred eighty-six".