992744811520 has 704 divisors, whose sum is σ = 3065643795456. Its totient is φ = 299500830720.

The previous prime is 992744811511. The next prime is 992744811577. The reversal of 992744811520 is 25118447299.

It is a tau number, because it is divible by the number of its divisors (704).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2661514054 + ... + 2661514426.

It is an arithmetic number, because the mean of its divisors is an integer number (4354607664).

Almost surely, 2^992744811520 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 992744811520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1532821897728).

992744811520 is an abundant number, since it is smaller than the sum of its proper divisors (2072898983936).

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

992744811520 is a wasteful number, since it uses less digits than its factorization.

992744811520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 992744811520 in words is "nine hundred ninety-two billion, seven hundred forty-four million, eight hundred eleven thousand, five hundred twenty".