308966796768 has 144 divisors (see below), whose sum is σ = 944562850560. Its totient is φ = 88172308224.

The previous prime is 308966796763. The next prime is 308966796811. The reversal of 308966796768 is 867697669803.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 308966796768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308966796763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4002505 + ... + 4078967.

It is an arithmetic number, because the mean of its divisors is an integer number (6559464240).

Almost surely, 2^308966796768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308966796768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472281425280).

308966796768 is an abundant number, since it is smaller than the sum of its proper divisors (635596053792).

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

308966796768 is a wasteful number, since it uses less digits than its factorization.

308966796768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77349 (or 77334 counting only the distinct ones).

The product of its (nonzero) digits is 987614208, while the sum is 75.

The spelling of 308966796768 in words is "three hundred eight billion, nine hundred sixty-six million, seven hundred ninety-six thousand, seven hundred sixty-eight".