2311923386808 has 512 divisors, whose sum is σ = 7776818380800. Its totient is φ = 622378598400.

The previous prime is 2311923386779. The next prime is 2311923386819. The reversal of 2311923386808 is 8086833291132.

2311923386808 is a `hidden beast` number, since 231 + 1 + 9 + 23 + 386 + 8 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1301025216 + ... + 1301026992.

It is an arithmetic number, because the mean of its divisors is an integer number (15189098400).

Almost surely, 2^{2311923386808} is an apocalyptic number.

2311923386808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2311923386808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3888409190400).

2311923386808 is an abundant number, since it is smaller than the sum of its proper divisors (5464894993992).

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

2311923386808 is a wasteful number, since it uses less digits than its factorization.

2311923386808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 2311923386808 in words is "two trillion, three hundred eleven billion, nine hundred twenty-three million, three hundred eighty-six thousand, eight hundred eight".