320706276861 has 8 divisors (see below), whose sum is σ = 429152082784. Its totient is φ = 213032327760.

The previous prime is 320706276827. The next prime is 320706276949. The reversal of 320706276861 is 168672607023.

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

It is not a de Polignac number, because 320706276861 - 2¹⁴ = 320706260477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320706276861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320706276811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192963235 + ... + 192964896.

It is an arithmetic number, because the mean of its divisors is an integer number (53644010348).

Almost surely, 2^320706276861 is an apocalyptic number.

It is an amenable number.

320706276861 is a deficient number, since it is larger than the sum of its proper divisors (108445805923).

320706276861 is a wasteful number, since it uses less digits than its factorization.

320706276861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385928411.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 320706276861 in words is "three hundred twenty billion, seven hundred six million, two hundred seventy-six thousand, eight hundred sixty-one".